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ALSA-2023:0173 — Moderate: libxml2 security update

Affected: AlmaLinux:8: libxml2, AlmaLinux:8: libxml2-devel, AlmaLinux:8: python3-libxml2

The libxml2 library is a development toolbox providing the implementation of various XML standards.

Security Fix(es):

* libxml2: integer overflows with XML_PARSE_HUGE (CVE-2022-40303) * libxml2: dict corruption caused by entity reference cycles (CVE-2022-40304)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

bdu:2022-06701

Withdrawn: BELL-CVE-2022-40303 — CVE-2022-40303 does not affect BellSoft software

Withdrawn by the publisher.

certfr-2022-avi-1024 — De multiples vulnérabilités ont été découvertes dans les produits Apple. Elles permettent à un attaquant de provoquer u…

certfr-2022-avi-1024

EUVD-2026-235535

fkie_cve-2022-40303

An issue was discovered in libxml2 before 2.10.3. When parsing a multi-gigabyte XML document with the XML_PARSE_HUGE parser option enabled, several integer counters can overflow. This results in an attempt to access an array at a negative 2GB offset, typically leading to a segmentation fault.

GHSA-94m8-rgr8-rg5g

gsd-2022-40303

ICSA-23-348-10 — Siemens SIMATIC S7-1500

expat 2.1.0 and earlier does not properly handle entities expansion unless an application developer uses the XML_SetEntityDeclHandler function, which allows remote attackers to cause a denial of service (resource consumption), send HTTP requests to intranet servers, or read arbitrary files via a crafted XML document, aka an XML External Entity (XXE) issue. NOTE: it could be argued that because expat already provides the ability to disable external entity expansion, the responsibility for resolving this issue lies with application developers; according to this argument, this entry should be REJECTed, and each affected application would need its own CVE. shadow: TOCTOU (time-of-check time-of-use) race condition when copying and removing directory trees run-mailcap in the Debian mime-support package before 3.52-1+deb7u1 allows context-dependent attackers to execute arbitrary commands via shell metacharacters in a filename. In Python (aka CPython) up to 3.10.8, the mailcap module does not add escape characters into commands discovered in the system mailcap file. This may allow attackers to inject shell commands into applications that call mailcap.findmatch with untrusted input (if they lack validation of user-provided filenames or arguments). The fix is also back-ported to 3.7, 3.8, 3.9 Use-after-free vulnerability in bzip2recover in bzip2 1.0.6 allows remote attackers to cause a denial of service (crash) via a crafted bzip2 file, related to block ends set to before the start o…

msrc_CVE-2022-40303 — An issue was discovered in libxml2 before 2.10.3. When parsing a multi-gigabyte XML document with the XML_PARSE_HUGE pa…

msrc_CVE-2022-40303

OESA-2022-2080 — libxml2 security update

Affected: openEuler:20.03-LTS-SP1: libxml2

This library allows to manipulate XML files. It includes support to read, modify and write XML and HTML files. There is DTDs support this includes parsing and validation even with complex DtDs, either at parse time or later once the document has been modified. The outputcan be a simple SAX stream or and in-memory DOM like representations. In this case one can use the built-in XPath and XPointer implementation to select sub nodes or ranges. A flexible Input/Output mechanism is available, with existing HTTP and FTP modules and combined to an URI library. Security Fix(es): A flaw was found in libxml2. Parsing a XML document with the XML_PARSE_HUGE option enabled can result in an integer overflow because safety checks were missing in some functions. Also, the xmlParseEntityValue function didn't have any length limitation.(CVE-2022-40303) A flaw was found in libxml2. When a reference cycle is detected in the XML entity cleanup function the XML entity data can be stored in a dictionary. In this case, the dictionary becomes corrupted resulting in logic errors, including memory errors like double free.(CVE-2022-40304)

openSUSE-SU-2024:12419-1 — libxml2-2-2.10.3-1.1 on GA media

libxml2-2-2.10.3-1.1 on GA media

RHSA-2024:0413 — Red Hat Security Advisory: libxml2 security update

libxml2: integer overflows with XML_PARSE_HUGE libxml2: dict corruption caused by entity reference cycles libxml2: NULL dereference in xmlSchemaFixupComplexType libxml2: Hashing of empty dict strings isn't deterministic libxml2: crafted xml can cause global buffer overflow

SUSE-SU-2022:3717-1 — Security update for libxml2

Security update for libxml2

UBUNTU-CVE-2022-40303

Affected: Ubuntu:Pro:14.04:LTS: libxml2, Ubuntu:Pro:16.04:LTS: libxml2, Ubuntu:18.04:LTS: libxml2, Ubuntu:20.04:LTS: libxml2, Ubuntu:22.04:LTS: libxml2

WID-SEC-W-2022-1787 — libxml2: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff

Ein Angreifer kann mehrere Schwachstellen in libxml2 ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.