ALT-PU-2017-1433-1 — libwebkitgtk4

BDU:2017-00817

MEDIUM6.8

Уязвимость операционной системы iOS, браузера Safari, позволяющая злоумышленнику нарушить конфиденциальность информации

Published: 2017-04-13Modified: 2021-03-23

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P

References

BDU:2017-00821

MEDIUM4.3

Уязвимость операционной системы iOS, браузера Safari, позволяющая нарушителю получить конфиденциальную информацию или обойти существующую политику ограничения доступа

Published: 2017-04-13Modified: 2021-03-23

CVSS 2.0MEDIUM 4.3

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:N/A:N

References

BDU:2017-00835

MEDIUM6.8

Уязвимость операционной системы iOS и браузера Safari , позволяющая нарушителю вызвать отказ в обслуживании или выполнить произвольный код

Published: 2017-04-13Modified: 2021-03-23

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P

References

BDU:2017-00837

MEDIUM6.8

Уязвимость операционной системы iOS и браузера Safari , позволяющая нарушителю вызвать отказ в обслуживании или выполнить произвольный код

Published: 2017-04-13Modified: 2021-03-23

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P

References

BDU:2017-00838

MEDIUM6.8

Уязвимость операционной системы iOS и браузера Safari , позволяющая нарушителю вызвать отказ в обслуживании или выполнить произвольный код

Published: 2017-04-13Modified: 2021-03-23

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P

References

BDU:2017-00843

MEDIUM6.8

Уязвимость операционной системы iOS и браузера Safari, позволяющая нарушителю вызвать отказ в обслуживании или выполнить произвольный код

Published: 2017-04-13Modified: 2021-03-23

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P

References

BDU:2017-00844

MEDIUM6.8

Уязвимость операционной системы iOS и браузера Safari, позволяющая нарушителю вызвать отказ в обслуживании или выполнить произвольный код

Published: 2017-04-13Modified: 2021-03-23

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P

References

BDU:2017-00849

MEDIUM6.8

Уязвимость операционной системы iOS и браузера Safari, позволяющая нарушителю вызвать отказ в обслуживании или выполнить произвольный код

Published: 2017-04-13Modified: 2021-03-23

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P

References

BDU:2017-00862

MEDIUM6.8

Уязвимость операционной системы iOS и браузера Safari, позволяющая нарушителю вызвать отказ в обслуживании или выполнить произвольный код

Published: 2017-04-13Modified: 2021-03-23

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P

References

BDU:2017-00867

MEDIUM6.8

Уязвимость операционной системы iOS и браузера Safari, позволяющая нарушителю вызвать отказ в обслуживании или выполнить произвольный код

Published: 2017-04-13Modified: 2021-03-23

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P

References

BDU:2017-00868

MEDIUM4.3

Уязвимость операционной системы iOS и браузера Safari, позволяющая нарушителю провести UXSS-атаку

Published: 2017-04-13Modified: 2021-03-23

CVSS 2.0MEDIUM 4.3

CVSS:2.0/AV:N/AC:M/Au:N/C:N/I:P/A:N

References

BDU:2017-00872

MEDIUM6.8

Уязвимость операционной системы iOS и браузера Safari, позволяющая нарушителю выполнить произвольный код

Published: 2017-04-13Modified: 2021-03-23

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P

References

BDU:2017-00873

MEDIUM6.8

Уязвимость браузера Safari и операционной системы iOS, позволяющая нарушителю вызвать отказ в обслуживании или выполнить произвольный код

Published: 2017-04-13Modified: 2021-03-23

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P

References

BDU:2017-00896

MEDIUM6.8

Уязвимость браузера Safari и операционной системы iOS, позволяющая нарушителю вызвать отказ в обслуживании или выполнить произвольный код

Published: 2017-04-20Modified: 2021-03-23

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P

References

BDU:2017-00907

MEDIUM6.8

Уязвимость операционной системы iOS и браузера Safari, позволяющая нарушителю вызвать отказ в обслуживании или выполнить произвольный код

Published: 2017-04-20Modified: 2021-03-23

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P

References

BDU:2017-00909

MEDIUM6.8

Уязвимость браузера Safari, позволяющая нарушителю вызвать отказ в обслуживании или выполнить произвольный код

Published: 2017-04-20Modified: 2021-03-23

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P

References

BDU:2017-00930

MEDIUM5.0

Уязвимость браузера Safari, операционной системы iOS, позволяющая нарушителю обойти механизм защиты политики безопасности

Published: 2017-04-20Modified: 2021-03-23

CVSS 2.0MEDIUM 5.0

CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:P/A:N

References

CVE-2016-9643

HIGH7.5

The regex code in Webkit 2.4.11 allows remote attackers to cause a denial of service (memory consumption) as demonstrated in a large number of ($ (open parenthesis and dollar) followed by {-2,16} and a large number of +) (plus close parenthesis).

Published: 2017-03-07Modified: 2025-04-20

CVSS 2.0MEDIUM 5.0

CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS 3.xHIGH 7.5

CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

CVE-2017-2364

MEDIUM6.5

An issue was discovered in certain Apple products. iOS before 10.2.1 is affected. Safari before 10.0.3 is affected. The issue involves the "WebKit" component. It allows remote attackers to bypass the Same Origin Policy and obtain sensitive information via a crafted web site.

Published: 2017-02-20Modified: 2025-04-20

CVSS 2.0MEDIUM 4.3

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:N/A:N

CVSS 3.xMEDIUM 6.5

CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

References

CVE-2017-2367

MEDIUM6.5

An issue was discovered in certain Apple products. iOS before 10.3 is affected. Safari before 10.1 is affected. tvOS before 10.2 is affected. The issue involves the "WebKit" component. It allows remote attackers to bypass the Same Origin Policy and obtain sensitive information via a crafted web site.

Published: 2017-04-02Modified: 2025-04-20

CVSS 2.0MEDIUM 4.3

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:N/A:N

CVSS 3.xMEDIUM 6.5

CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

References

CVE-2017-2369

HIGH8.8

An issue was discovered in certain Apple products. iOS before 10.2.1 is affected. Safari before 10.0.3 is affected. tvOS before 10.1.1 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.

Published: 2017-02-20Modified: 2025-04-20

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS 3.xHIGH 8.8

CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

CVE-2017-2377

HIGH7.5

An issue was discovered in certain Apple products. iOS before 10.3 is affected. Safari before 10.1 is affected. The issue involves the "WebKit Web Inspector" component. It allows attackers to cause a denial of service (memory corruption and application crash) by leveraging a window-close action during a debugger-pause state.

Published: 2017-04-02Modified: 2025-04-20

CVSS 2.0MEDIUM 5.0

CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS 3.xHIGH 7.5

CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

CVE-2017-2392

HIGH7.8

An issue was discovered in certain Apple products. Safari before 10.1 is affected. The issue involves the "WebKit" component. It allows attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted app.

Published: 2017-04-02Modified: 2025-04-20

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS 3.xHIGH 7.8

CVSS:3.x/CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

CVE-2017-2394

HIGH8.8

An issue was discovered in certain Apple products. iOS before 10.3 is affected. Safari before 10.1 is affected. tvOS before 10.2 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.

Published: 2017-04-02Modified: 2025-04-20

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS 3.xHIGH 8.8

CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

CVE-2017-2405

HIGH8.8

An issue was discovered in certain Apple products. iOS before 10.3 is affected. Safari before 10.1 is affected. The issue involves the "WebKit Web Inspector" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.

Published: 2017-04-02Modified: 2025-04-20

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS 3.xHIGH 8.8

CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

CVE-2017-2419

HIGH7.5

An issue was discovered in certain Apple products. iOS before 10.3 is affected. Safari before 10.1 is affected. The issue involves the "WebKit" component. It allows remote attackers to bypass a Content Security Policy protection mechanism via unspecified vectors.

Published: 2017-04-02Modified: 2025-04-20

CVSS 2.0MEDIUM 5.0

CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS 3.xHIGH 7.5

CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References

CVE-2017-2442

MEDIUM6.5

An issue was discovered in certain Apple products. iOS before 10.3 is affected. Safari before 10.1 is affected. The issue involves the "WebKit JavaScript Bindings" component. It allows remote attackers to bypass the Same Origin Policy and obtain sensitive information via a crafted web site.

Published: 2017-04-02Modified: 2025-04-20

CVSS 2.0MEDIUM 4.3

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:N/A:N

CVSS 3.xMEDIUM 6.5

CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

References

CVE-2017-2446

HIGH8.8

An issue was discovered in certain Apple products. iOS before 10.3 is affected. Safari before 10.1 is affected. tvOS before 10.2 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code via a crafted web site that leverages the mishandling of strict mode functions.

Published: 2017-04-02Modified: 2025-04-20

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS 3.xHIGH 8.8

CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

CVE-2017-2454

HIGH8.8

An issue was discovered in certain Apple products. iOS before 10.3 is affected. Safari before 10.1 is affected. tvOS before 10.2 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.

Published: 2017-04-02Modified: 2025-04-20

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS 3.xHIGH 8.8

CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

CVE-2017-2459

HIGH8.8

An issue was discovered in certain Apple products. iOS before 10.3 is affected. Safari before 10.1 is affected. tvOS before 10.2 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.

Published: 2017-04-02Modified: 2025-04-20

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS 3.xHIGH 8.8

CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

CVE-2017-2460

HIGH8.8

An issue was discovered in certain Apple products. iOS before 10.3 is affected. Safari before 10.1 is affected. tvOS before 10.2 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.

Published: 2017-04-02Modified: 2025-04-20

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS 3.xHIGH 8.8

CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

CVE-2017-2465

HIGH8.8

An issue was discovered in certain Apple products. iOS before 10.3 is affected. Safari before 10.1 is affected. tvOS before 10.2 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.

Published: 2017-04-02Modified: 2025-04-20

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS 3.xHIGH 8.8

CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

CVE-2017-2466

HIGH8.8

An issue was discovered in certain Apple products. iOS before 10.3 is affected. Safari before 10.1 is affected. tvOS before 10.2 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.

Published: 2017-04-02Modified: 2025-04-20

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS 3.xHIGH 8.8

CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

CVE-2017-2468

HIGH8.8

An issue was discovered in certain Apple products. iOS before 10.3 is affected. Safari before 10.1 is affected. tvOS before 10.2 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.

Published: 2017-04-02Modified: 2025-04-20

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS 3.xHIGH 8.8

CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

CVE-2017-2470

HIGH8.8

An issue was discovered in certain Apple products. iOS before 10.3 is affected. Safari before 10.1 is affected. tvOS before 10.2 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.

Published: 2017-04-02Modified: 2025-04-20

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS 3.xHIGH 8.8

CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

CVE-2017-2471

HIGH8.8

An issue was discovered in certain Apple products. iOS before 10.3 is affected. Safari before 10.1 is affected. watchOS before 3.2 is affected. The issue involves the "WebKit" component. A use-after-free vulnerability allows remote attackers to execute arbitrary code via a crafted web site.

Published: 2017-04-02Modified: 2025-04-20

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS 3.xHIGH 8.8

CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

CVE-2017-2475

MEDIUM6.1

An issue was discovered in certain Apple products. iOS before 10.3 is affected. Safari before 10.1 is affected. tvOS before 10.2 is affected. The issue involves the "WebKit" component. It allows remote attackers to conduct Universal XSS (UXSS) attacks via crafted use of frames on a web site.

Published: 2017-04-02Modified: 2025-04-20

CVSS 2.0MEDIUM 4.3

CVSS:2.0/AV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS 3.xMEDIUM 6.1

CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

CVE-2017-2476

HIGH8.8

An issue was discovered in certain Apple products. iOS before 10.3 is affected. Safari before 10.1 is affected. tvOS before 10.2 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.

Published: 2017-04-02Modified: 2025-04-20

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS 3.xHIGH 8.8

CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

CVE-2017-2481

HIGH8.8

An issue was discovered in certain Apple products. iOS before 10.3 is affected. Safari before 10.1 is affected. tvOS before 10.2 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.

Published: 2017-04-02Modified: 2025-04-20

CVSS 2.0MEDIUM 6.8

CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS 3.xHIGH 8.8

CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Package update libwebkitgtk4 in branch p8

Closed issues (39)

Уязвимость операционной системы iOS, браузера Safari, позволяющая злоумышленнику нарушить конфиденциальность информации

Уязвимость операционной системы iOS и браузера Safari , позволяющая нарушителю вызвать отказ в обслуживании или выполнить произвольный код

Уязвимость операционной системы iOS и браузера Safari , позволяющая нарушителю вызвать отказ в обслуживании или выполнить произвольный код

Уязвимость операционной системы iOS и браузера Safari , позволяющая нарушителю вызвать отказ в обслуживании или выполнить произвольный код

Уязвимость операционной системы iOS и браузера Safari, позволяющая нарушителю вызвать отказ в обслуживании или выполнить произвольный код

Уязвимость операционной системы iOS и браузера Safari, позволяющая нарушителю вызвать отказ в обслуживании или выполнить произвольный код

Уязвимость операционной системы iOS и браузера Safari, позволяющая нарушителю вызвать отказ в обслуживании или выполнить произвольный код

Уязвимость операционной системы iOS и браузера Safari, позволяющая нарушителю вызвать отказ в обслуживании или выполнить произвольный код

Уязвимость операционной системы iOS и браузера Safari, позволяющая нарушителю вызвать отказ в обслуживании или выполнить произвольный код

Уязвимость операционной системы iOS и браузера Safari, позволяющая нарушителю провести UXSS-атаку

Уязвимость операционной системы iOS и браузера Safari, позволяющая нарушителю выполнить произвольный код

Уязвимость браузера Safari и операционной системы iOS, позволяющая нарушителю вызвать отказ в обслуживании или выполнить произвольный код

Уязвимость браузера Safari и операционной системы iOS, позволяющая нарушителю вызвать отказ в обслуживании или выполнить произвольный код

Уязвимость операционной системы iOS и браузера Safari, позволяющая нарушителю вызвать отказ в обслуживании или выполнить произвольный код

Уязвимость браузера Safari, позволяющая нарушителю вызвать отказ в обслуживании или выполнить произвольный код

Уязвимость браузера Safari, операционной системы iOS, позволяющая нарушителю обойти механизм защиты политики безопасности

The regex code in Webkit 2.4.11 allows remote attackers to cause a denial of service (memory consumption) as demonstrated in a large number of ($ (open parenthesis and dollar) followed by {-2,16} and a large number of +) (plus close parenthesis).

An issue was discovered in certain Apple products. iOS before 10.2.1 is affected. Safari before 10.0.3 is affected. The issue involves the "WebKit" component. It allows remote attackers to bypass the Same Origin Policy and obtain sensitive information via a crafted web site.

An issue was discovered in certain Apple products. Safari before 10.1 is affected. The issue involves the "WebKit" component. It allows attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted app.

An issue was discovered in certain Apple products. iOS before 10.3 is affected. Safari before 10.1 is affected. The issue involves the "WebKit" component. It allows remote attackers to bypass a Content Security Policy protection mechanism via unspecified vectors.

An issue was discovered in certain Apple products. iOS before 10.3 is affected. Safari before 10.1 is affected. The issue involves the "WebKit JavaScript Bindings" component. It allows remote attackers to bypass the Same Origin Policy and obtain sensitive information via a crafted web site.

An issue was discovered in certain Apple products. iOS before 10.3 is affected. Safari before 10.1 is affected. watchOS before 3.2 is affected. The issue involves the "WebKit" component. A use-after-free vulnerability allows remote attackers to execute arbitrary code via a crafted web site.

An issue was discovered in certain Apple products. iOS before 10.3 is affected. Safari before 10.1 is affected. tvOS before 10.2 is affected. The issue involves the "WebKit" component. It allows remote attackers to conduct Universal XSS (UXSS) attacks via crafted use of frames on a web site.