All errata/c10f1/ALT-PU-2023-7461-3
ALT-PU-2023-7461-3

Package update squid in branch c10f1

Version6.5-alt1
Task#334835
Published2026-02-04
Max severityCRITICAL
Severity:

Closed issues (18)

BDU:2023-07699
HIGH8.6

Уязвимость прокси-сервера Squid, связанная с ошибками при проверке сертификата SSL/TLS, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2023-11-13Modified: 2025-03-05
CVSS 3.xHIGH 8.6
CVSS:3.x/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CVSS 2.0HIGH 7.8
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:C
References
BDU:2023-07920
CRITICAL9.9

Уязвимость обработчика аутентификации HTTP Digest Authentication прокси-сервера Squid, позволяющая нарушителю вызвать отказ в обслуживании или оказать иное воздействие

Published: 2023-11-16Modified: 2026-01-20
CVSS 3.xCRITICAL 9.9
CVSS:3.x/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H
CVSS 2.0CRITICAL 9.0
CVSS:2.0/AV:N/AC:L/Au:N/C:P/I:P/A:C
References
BDU:2023-08061
HIGH7.5

Уязвимость прокси-сервера Squid, связана с неправильным обращением с исключительными условиями и неконтролируемым потреблением ресурсов, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2023-11-22Modified: 2025-03-05
CVSS 3.xHIGH 7.5
CVSS:3.x/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0HIGH 7.8
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:C
References
BDU:2023-08062
HIGH7.5

Уязвимость прокси-сервера Squid, связана с неправильным преобразованием между числовыми типами и неконтролируемым потреблением ресурсов, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2023-11-22Modified: 2025-03-05
CVSS 3.xHIGH 7.5
CVSS:3.x/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0HIGH 7.8
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:C
References
BDU:2023-08063
MEDIUM5.3

Уязвимость декодера chunked прокси-сервера Squid, позволяющая нарушителю взаимодействовать с сервером напрямую

Published: 2023-11-22Modified: 2025-03-19
CVSS 3.xMEDIUM 5.3
CVSS:3.x/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS 2.0MEDIUM 5.0
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:P/A:N
References
BDU:2023-08580
HIGH8.6

Уязвимость прокси-сервера Squid, связанная с недостаточной проверкой исключительных состояний, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2023-12-11Modified: 2026-01-20
CVSS 3.xHIGH 8.6
CVSS:3.x/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CVSS 2.0HIGH 7.8
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:C
References
BDU:2023-08581
HIGH8.6

Уязвимость прокси-сервера Squid, связанная с выходом операции за границы буфера в памяти, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2023-12-11Modified: 2026-01-20
CVSS 3.xHIGH 8.6
CVSS:3.x/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CVSS 2.0HIGH 7.8
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:C
References
BDU:2024-02844
HIGH8.6

Уязвимость прокси-сервера Squid, связанная с неконтролируемым потреблением ресурсов, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2024-04-12Modified: 2026-01-20
CVSS 3.xHIGH 8.6
CVSS:3.x/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CVSS 2.0HIGH 7.8
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:C
References
BDU:2025-09345
CRITICAL9.3

Уязвимость прокси-сервера Squid, связанная с переполнением буфера в динамической памяти при обработке URN-заголовков, позволяющая нарушителю выполнить произвольный код

Published: 2025-08-04Modified: 2025-10-29
CVSS 3.xCRITICAL 9.3
CVSS:3.x/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:H
CVSS 2.0HIGH 8.5
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:P/A:C
References
CVE-2023-46724
HIGH7.5

Squid is a caching proxy for the Web. Due to an Improper Validation of Specified Index bug, Squid versions 3.3.0.1 through 5.9 and 6.0 prior to 6.4 compiled using `--with-openssl` are vulnerable to a Denial of Service attack against SSL Certificate validation. This problem allows a remote server to perform Denial of Service against Squid Proxy by initiating a TLS Handshake with a specially crafted SSL Certificate in a server certificate chain. This attack is limited to HTTPS and SSL-Bump. This bug is fixed in Squid version 6.4. In addition, patches addressing this problem for the stable releases can be found in Squid's patch archives. Those who you use a prepackaged version of Squid should refer to the package vendor for availability information on updated packages.

Published: 2023-11-01Modified: 2025-02-13
CVSS 3.xHIGH 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2023-46846
MEDIUM5.3

SQUID is vulnerable to HTTP request smuggling, caused by chunked decoder lenience, allows a remote attacker to perform Request/Response smuggling past firewall and frontend security systems.

Published: 2023-11-03Modified: 2024-12-18
CVSS 3.xMEDIUM 5.3
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
References
CVE-2023-46847
HIGH7.5

Squid is vulnerable to a Denial of Service, where a remote attacker can perform buffer overflow attack by writing up to 2 MB of arbitrary data to heap memory when Squid is configured to accept HTTP Digest Authentication.

Published: 2023-11-03Modified: 2024-11-21
CVSS 3.xHIGH 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2023-46848
HIGH7.5

Squid is vulnerable to Denial of Service, where a remote attacker can perform DoS by sending ftp:// URLs in HTTP Request messages or constructing ftp:// URLs from FTP Native input.

Published: 2023-11-03Modified: 2024-11-21
CVSS 3.xHIGH 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2023-49285
HIGH7.5

Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to a Buffer Overread bug Squid is vulnerable to a Denial of Service attack against Squid HTTP Message processing. This bug is fixed by Squid version 6.5. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Published: 2023-12-04Modified: 2024-11-21
CVSS 3.xHIGH 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2023-49286
HIGH7.5

Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to an Incorrect Check of Function Return Value bug Squid is vulnerable to a Denial of Service attack against its Helper process management. This bug is fixed by Squid version 6.5. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Published: 2023-12-04Modified: 2024-11-21
CVSS 3.xHIGH 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2023-5824
HIGH7.5

A flaw was found in Squid. The limits applied for validation of HTTP response headers are applied before caching. However, Squid may grow a cached HTTP response header beyond the configured maximum size, causing a stall or crash of the worker process when a large header is retrieved from the disk cache, resulting in a denial of service.

Published: 2023-11-03Modified: 2025-11-03
CVSS 3.xHIGH 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2024-25617
HIGH7.5

Squid is an open source caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to a Collapse of Data into Unsafe Value bug ,Squid may be vulnerable to a Denial of Service attack against HTTP header parsing. This problem allows a remote client or a remote server to perform Denial of Service when sending oversized headers in HTTP messages. In versions of Squid prior to 6.5 this can be achieved if the request_header_max_size or reply_header_max_size settings are unchanged from the default. In Squid version 6.5 and later, the default setting of these parameters is safe. Squid will emit a critical warning in cache.log if the administrator is setting these parameters to unsafe values. Squid will not at this time prevent these settings from being changed to unsafe values. Users are advised to upgrade to version 6.5. There are no known workarounds for this vulnerability. This issue is also tracked as SQUID-2024:2

Published: 2024-02-14Modified: 2025-06-25
CVSS 3.xHIGH 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2025-54574
CRITICAL9.8

Squid is a caching proxy for the Web. In versions 6.3 and below, Squid is vulnerable to a heap buffer overflow and possible remote code execution attack when processing URN due to incorrect buffer management. This has been fixed in version 6.4. To work around this issue, disable URN access permissions.

Published: 2025-08-01Modified: 2025-11-05
CVSS 3.xCRITICAL 9.8
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References