ALT-PU-2023-1674-1

Package update libxml2 in branch sisyphus

Version2.10.4-alt1

Published2023-04-26

Max severityMEDIUM

Severity:

Closed issues (4)

MEDIUM6.5

Уязвимость функции xmlSchemaFixupComplexType (xmlschemas.c) библиотеки Libxml2, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2023-06-21Modified: 2026-01-20

CVSS 3.xMEDIUM 6.5

CVSS:3.x/AV:N/AC:L/PR:N/UI:R/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

CVE-2023-28484

MEDIUM6.5

Уязвимость функции xmlDictComputeFastKey (dict.c) библиотеки Libxml2, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2023-06-21Modified: 2026-01-20

CVSS 3.xMEDIUM 6.5

CVSS:3.x/AV:N/AC:L/PR:N/UI:R/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

CVE-2023-29469

MEDIUM6.5

In libxml2 before 2.10.4, parsing of certain invalid XSD schemas can lead to a NULL pointer dereference and subsequently a segfault. This occurs in xmlSchemaFixupComplexType in xmlschemas.c.

Published: 2023-04-24Modified: 2025-05-30

CVSS 3.xMEDIUM 6.5

CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References

MEDIUM6.5

An issue was discovered in libxml2 before 2.10.4. When hashing empty dict strings in a crafted XML document, xmlDictComputeFastKey in dict.c can produce non-deterministic values, leading to various logic and memory errors, such as a double free. This behavior occurs because there is an attempt to use the first byte of an empty string, and any value is possible (not solely the '\0' value).

Published: 2023-04-24Modified: 2025-02-04

CVSS 3.xMEDIUM 6.5

CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References