CVE-2022-40304 - Improper Restriction of XML External Entity Reference

Severity

78%

Complexity

18%

Confidentiality

98%

An issue was discovered in libxml2 before 2.10.3. Certain invalid XML entity definitions can corrupt a hash table key, potentially leading to subsequent logic errors. In one case, a double-free can be provoked.

CVSS 3.1 Base Score 7.8. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).

Overview

First reported 2 years ago

2022-11-23 18:15:00

Last updated 2 years ago

2022-12-21 06:15:00

Affected Software

XMLSoft Libxml2

References

https://gitlab.gnome.org/GNOME/libxml2/-/tags/v2.10.3

https://gitlab.gnome.org/GNOME/libxml2/-/commit/1b41ec4e9433b05bb0376be4725804c54ef1d80b

https://gitlab.gnome.org/GNOME/libxml2/-/tags

https://gitlab.gnome.org/GNOME/libxml2/-/tags/v2.10.3

Patch, Release Notes, Third Party Advisory

https://gitlab.gnome.org/GNOME/libxml2/-/commit/1b41ec4e9433b05bb0376be4725804c54ef1d80b

Patch, Third Party Advisory

https://gitlab.gnome.org/GNOME/libxml2/-/tags

Release Notes, Third Party Advisory

https://security.netapp.com/advisory/ntap-20221209-0003/

https://support.apple.com/kb/HT213534

https://support.apple.com/kb/HT213535

https://support.apple.com/kb/HT213536

https://support.apple.com/kb/HT213531

https://support.apple.com/kb/HT213533

20221220 APPLE-SA-2022-12-13-2 iOS 15.7.2 and iPadOS 15.7.2

20221220 APPLE-SA-2022-12-13-6 macOS Big Sur 11.7.2

20221220 APPLE-SA-2022-12-13-5 macOS Monterey 12.6.2

20221220 APPLE-SA-2022-12-13-7 tvOS 16.2

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