All errata/sisyphus/ALT-PU-2025-16261-8
ALT-PU-2025-16261-8

Package update libxml2 in branch sisyphus

Version2.14.6-alt2
Task#403806
Published2026-04-02
Max severityCRITICAL
Severity:

Closed issues (13)

BDU:2025-07144
HIGH7.5

Уязвимость функции xmlBuildQName библиотеки Libxml2, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2025-06-20Modified: 2026-04-20
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:2025-08977
HIGH7.5

Уязвимость функции xmlSchematronFormatReport() компонента Schematron Schema Report библиотеки libxml2, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2025-07-24
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:2025-08978
CRITICAL9.1

Уязвимость функции xmlSchematronFormatReport() библиотеки libxml2, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2025-07-24Modified: 2026-04-20
CVSS 3.xCRITICAL 9.1
CVSS:3.x/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
CVSS 2.0CRITICAL 9.4
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:C/A:C
References
BDU:2025-08979
CRITICAL9.1

Уязвимость функции xmlSchematronGetNode библиотеки Libxml2, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2025-07-24Modified: 2026-04-20
CVSS 3.xCRITICAL 9.1
CVSS:3.x/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
CVSS 2.0CRITICAL 9.4
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:C/A:C
References
BDU:2025-11756
LOW2.5

Уязвимость библиотеки для работы с XML и HTML файлами libxml2, связанная с переполнением буфера в стеке, позволяющая нарушителю выполнить произвольный код

Published: 2025-09-26Modified: 2026-03-04
CVSS 3.xLOW 2.5
CVSS:3.x/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L
CVSS 2.0LOW 1.2
CVSS:2.0/AV:L/AC:H/Au:N/C:N/I:N/A:P
References
BDU:2026-04327
HIGH7.8

Уязвимость атрибутов type, atype, flags библиотеки для анализа XML-документов Libxslt, позволяющей нарушителю выполнить произвольный код

Published: 2026-04-01Modified: 2026-04-16
CVSS 3.xHIGH 7.8
CVSS:3.x/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H
CVSS 2.0MEDIUM 5.6
CVSS:2.0/AV:L/AC:H/Au:N/C:N/I:C/A:C
References
CVE-2025-49794
CRITICAL9.1

A use-after-free vulnerability was found in libxml2. This issue occurs when parsing XPath elements under certain circumstances when the XML schematron has the schema elements. This flaw allows a malicious actor to craft a malicious XML document used as input for libxml, resulting in the program's crash using libxml or other possible undefined behaviors.

Published: 2025-06-16Modified: 2026-04-19
CVSS 3.xCRITICAL 9.1
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
References
CVE-2025-49795
HIGH7.5

A NULL pointer dereference vulnerability was found in libxml2 when processing XPath XML expressions. This flaw allows an attacker to craft a malicious XML input to libxml2, leading to a denial of service.

Published: 2025-06-16Modified: 2026-04-19
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-2025-49796
CRITICAL9.1

A vulnerability was found in libxml2. Processing certain sch:name elements from the input XML file can trigger a memory corruption issue. This flaw allows an attacker to craft a malicious XML input file that can lead libxml to crash, resulting in a denial of service or other possible undefined behavior due to sensitive data being corrupted in memory.

Published: 2025-06-16Modified: 2026-04-19
CVSS 3.xCRITICAL 9.1
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
References
CVE-2025-6021
HIGH7.5

A flaw was found in libxml2's xmlBuildQName function, where integer overflows in buffer size calculations can lead to a stack-based buffer overflow. This issue can result in memory corruption or a denial of service when processing crafted input.

Published: 2025-06-12Modified: 2026-04-19
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-2025-6170
LOW2.5

A flaw was found in the interactive shell of the xmllint command-line tool, used for parsing XML files. When a user inputs an overly long command, the program does not check the input size properly, which can cause it to crash. This issue might allow attackers to run harmful code in rare configurations without modern protections.

Published: 2025-06-16Modified: 2026-04-19
CVSS 3.xLOW 2.5
CVSS:3.x/CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L
References
CVE-2025-7425
HIGH7.8

A flaw was found in libxslt where the attribute type, atype, flags are modified in a way that corrupts internal memory management. When XSLT functions, such as the key() process, result in tree fragments, this corruption prevents the proper cleanup of ID attributes. As a result, the system may access freed memory, causing crashes or enabling attackers to trigger heap corruption.

Published: 2025-07-10Modified: 2026-04-30
CVSS 3.xHIGH 7.8
CVSS:3.x/CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H
References
GHSA-353f-x4gh-cqq8
NONE

Nokogiri patches vendored libxml2 to resolve multiple CVEs

Published: 2025-07-21
References