CVE-2024-55549: libxslt security updates

Published Jan 27, 2025
·
Updated

Accessibility. An authentication issue was addressed with improved state management.

Other sources

AirPlay. A null pointer dereference was addressed with improved input validation.

— Apple

AirPlay. A type confusion issue was addressed with improved checks.

— Apple

AirPlay. An input validation issue was addressed.

— Apple

AirPlay. The issue was addressed with improved memory handling.

— Apple

AppKit. The issue was addressed with additional permissions checks.

— Apple

Credit

Uri Katz (Oligo Security), Minghao Lin@@Y1nKoc(Zhejiang University), babywu(Zhejiang University), (Zhejiang University), Xingwei Lin(Zhejiang University), Google Threat Analysis Group, Desmond(Trend Micro Zero Day Initiative), Pwn2car & Rotiple (HyeongSeok Jang)(Trend Micro Zero Day Initiative), CVE-2025-24085, Song Hyun Bae@@bshyuunn, Lee Dong Ha (Who4mI), Wang Yu(Cyberserval), DongJun Kim@@smlijun, JongSeong Kim in Enki WhiteHat@@nevul37, D4m0n, Mateusz Krzywicki@@krzywix, an anonymous researcher, pattern-f@@pattern_F_, Ivan Fratric(Google Project Zero), Mickey Jin@@patch1t, Michael DePlante@@izobashi(Trend Micro Zero Day Initiative), Q1IQ@@q1iqF(NUS CuriOSity), P1umer@@p1umer(Imperial Global Singapore), linjy(HKUS3Lab), chluo(WHUSecLab), Michael (Biscuit) Thomas @social.lol)@@biscuit, @@RenwaX23, Joseph Ravichandran@@0xjprx(MIT CSAIL), Hichem Maloufi, Hakim Boukhadra, Anonymous(Trend Micro Zero Day Initiative), Kirin@@Pwnrin, Gary Kwong, Pwn2car & Rotiple(HyeongSeok Jang)(Trend Micro Zero Day Initiative), Bohdan Stasiuk@@Bohdan_Stasiuk, Matej Moravec@@MacejkoMoravec, Arsenii Kostromin (0x3c3e), Joshua Jones, 风(binary_fmyy), Minghao Lin@(Y1nKoc), Pedro Tôrres@@t0rr3sp3dr0, Josh Parnham@@joshparnham, 神罚@@Pwnrin, Zhongquan Li@@Guluisacat, Hossein Lotfi@@hosselot(Trend Micro Zero Day Initiative), Junsung Lee, Rodolphe BRUNETTI@@eisw0lf(Lupus Nova), Yann GASCUEL(Alter Solutions), Adam M., Johan Carlsson (joaxcar), PixiePoint Security, Minghao Lin@@Y1nKoc, Yiğit Can YILMAZ@@yilmazcanyigit, Eric Dorphy(Twin Cities App Dev LLC), jioundai(360 Vulnerability Research Institute), chen fengjiao(HBC), CertiK SkyFall Team, Jonathan Bar Or@@yo_yo_yo_jbo(Microsoft), Denis Tokarev@@illusionofcha0s, Zikan Wang@@Lakr233, Guilherme Rambo(Best Buddy Apps), mastersplinter, Jason Gendron@@gendron_jason, 이준성 (Junsung Lee), Abhay Kailasia@@abhay_kailasia(C)

Affected Software

16 affected componentsFixes available
libxslt libxslt<1.1.43
debian/libxslt<=1.1.34-4+deb11u1, <=1.1.35-1
1.1.34-4+deb11u21.1.35-1+deb12u11.1.35-1.2
Apple tvOS<18.3
18.3
Apple visionOS<2.3
2.3
Apple WatchOS<11.3
11.3
Apple iPadOS<17.7.4
17.7.4
F5 Traffix SDC=5.2.0
5.2.0
Apple macOS Sequoia<15.3
15.3
Xmlsoft Libxslt<1.1.43
Apple macOS Ventura<13.7.3
13.7.3
Apple macOS Sonoma<14.7.3
14.7.3
Apple iOS<18.3
18.3
Apple iPadOS<18.3
18.3
Microsoft azl3 libxslt 1.1.39-1
Patch available
Microsoft cbl2 libxslt 1.1.34-8
Patch available
Microsoft azl3 libxslt 1.1.43-1
Patch available

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade debian/libxslt to a version that resolves this vulnerability.

    Fixed in 1.1.34-4+deb11u2Fixed in 1.1.35-1+deb12u1Fixed in 1.1.35-1.2
  2. Upgrade

    Upgrade tvOS to a version that resolves this vulnerability.

    Fixed in 18.3
  3. Upgrade

    Upgrade visionOS to a version that resolves this vulnerability.

    Fixed in 2.3
  4. Upgrade

    Upgrade Apple iOS, iPadOS, and watchOS to a version that resolves this vulnerability.

    Fixed in 11.3
  5. Upgrade

    Upgrade Apple iOS, iPadOS, and macOS to a version that resolves this vulnerability.

    Fixed in 17.7.4
  6. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 5.2.0
  7. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 15.3
  8. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 13.7.3
  9. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 14.7.3
  10. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 18.3
  11. Upgrade

    Upgrade libxslt to a version that resolves this vulnerability.

    Fixed in 1.1.43
  12. Operational

    Ensure systems use libxslt 1.1.43 or later, since libxslt versions before 1.1.43 contain use-after-free vulnerabilities in functions including xsltNumberFormatGetValue, xsltEvalXPathPredicate, xsltEvalXPathStringNs, and xsltComputeSortResultInternal (related to issues in xsltGetInheritedNsList) that can be triggered via nested XPath evaluations.

Event History

Jan 27, 2025
Data Sourced
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
DescriptionWeakness
Updated
via Apple·12:00 AM
Description
Updated
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
Affected Software
Updated
via Apple·12:00 AM
DescriptionAffected Software
Mar 14, 2025
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
DescriptionSeverityWeakness
Data Sourced
via Red Hat·02:01 AM
DescriptionSeverityAffected Software
Data Sourced
via NVD·02:15 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·02:15 AM
Affected Software
Mar 19, 2025
Data Sourced
via Ubuntu·05:58 PM
RemedyDescriptionSeverityAffected Software
Mar 25, 2025
Data Sourced
via Microsoft·07:00 AM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·07:00 AM
Affected Software
Updated
via Microsoft·07:00 AM
Affected Software
Updated
via Microsoft·07:00 AM
DescriptionSeverity
Aug 11, 2025
Advisory Published
via F5·12:58 AM
Data Sourced
via F5·12:58 AM
DescriptionSeverityWeaknessAffected Software
Apr 22, 2026
Data Sourced
via GitLab·02:16 AM
Description

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of CVE-2024-55549?

CVE-2024-55549 has been classified as a high-severity vulnerability due to the potential for exploitation through a use-after-free condition.

2

How do I fix CVE-2024-55549?

To fix CVE-2024-55549, upgrade libxslt to version 1.1.43 or later as it addresses this vulnerability.

3

What versions of libxslt are affected by CVE-2024-55549?

CVE-2024-55549 affects all versions of libxslt prior to 1.1.43.

4

What is a use-after-free issue in the context of CVE-2024-55549?

In the context of CVE-2024-55549, a use-after-free issue occurs when the software attempts to access memory after it has been freed, leading to potential vulnerabilities.

5

Can CVE-2024-55549 lead to remote code execution?

Yes, if exploited, CVE-2024-55549 may allow attackers to execute arbitrary code on affected systems.

Company

Resources

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