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ALSA-2024:1530 — Moderate: expat security update

Affected: AlmaLinux:9: expat, AlmaLinux:9: expat-devel

Expat is a C library for parsing XML documents.

Security Fix(es):

* expat: parsing large tokens can trigger a denial of service (CVE-2023-52425) * expat: XML Entity Expansion (CVE-2024-28757)

bdu:2024-01976

BELL-CVE-2024-28757

Affected: Alpaquita:23: expat, Alpaquita:stream: expat, BellSoft Hardened Containers:23: expat, BellSoft Hardened Containers:stream: expat

certfr-2024-avi-0498 — De multiples vulnérabilités ont été découvertes dans les produits IBM. Certaines d'entre elles permettent à un attaquan…

certfr-2024-avi-0498

Withdrawn: CLEANSTART-2026-EM10970 — Security fixes for CVE-2017-9233, CVE-2019-15903, CVE-2021-45960, CVE-2021-46143, CVE-2022-22822, CVE-2022-22823, CVE-2…

Withdrawn by the publisher.

Affected: CleanStart: expat

Multiple security vulnerabilities affect the expat package. These issues are resolved in later releases. See references for individual vulnerability details.

EUVD-2026-260133

fkie_cve-2024-28757

libexpat through 2.6.1 allows an XML Entity Expansion attack when there is isolated use of external parsers (created via XML_ExternalEntityParserCreate).

GHSA-ch5v-h69f-mxc8

libexpat through 2.6.1 allows an XML Entity Expansion attack when there is isolated use of external parsers (created via XML_ExternalEntityParserCreate).

gsd-2024-28757

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-2024-28757 — libexpat through 2.6.1 allows an XML Entity Expansion attack when there is isolated use of external parsers (created vi…

msrc_CVE-2024-28757

OESA-2024-1379 — expat security update

Affected: openEuler:20.03-LTS-SP1: expat, openEuler:20.03-LTS-SP4: expat, openEuler:22.03-LTS: expat, openEuler:22.03-LTS-SP1: expat, openEuler:22.03-LTS-SP2: expat, openEuler:22.03-LTS-SP3: expat

expat is a stream-oriented XML parser library written in C. expat excels with files too large to fit RAM, and where performance and flexibility are crucial. Security Fix(es): libexpat through 2.5.0 allows recursive XML Entity Expansion if XML_DTD is undefined at compile time.(CVE-2023-52426) libexpat through 2.6.1 allows an XML Entity Expansion attack when there is isolated use of external parsers (created via XML_ExternalEntityParserCreate).(CVE-2024-28757)

openSUSE-SU-2024:13779-1 — expat-2.6.2-1.1 on GA media

expat-2.6.2-1.1 on GA media

RHSA-2024:3926 — Red Hat Security Advisory: expat security update

expat: parsing large tokens can trigger a denial of service expat: XML Entity Expansion

SUSE-SU-2024:1129-2 — Security update for expat

Security update for expat

UBUNTU-CVE-2024-28757

Affected: Ubuntu:Pro:14.04:LTS: coin3, Ubuntu:Pro:14.04:LTS: expat, Ubuntu:Pro:14.04:LTS: vnc4, Ubuntu:Pro:14.04:LTS: vtk, Ubuntu:Pro:14.04:LTS: xmlrpc-c, Ubuntu:Pro:16.04:LTS: expat, Ubuntu:Pro:16.04:LTS: ayttm, Ubuntu:Pro:16.04:LTS: cableswig, Ubuntu:16.04:LTS: cadaver, Ubuntu:Pro:16.04:LTS: coin3 and 61 more

libexpat through 2.6.1 allows an XML Entity Expansion attack when there is isolated use of external parsers (created via XML_ExternalEntityParserCreate).

WID-SEC-W-2024-0591 — expat: Schwachstelle ermöglicht Denial of Service

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in expat ausnutzen, um einen Denial of Service Angriff durchzuführen.