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ALPINE-CVE-2022-43680

ALPINE-CVE-2022-43680 PUBLISHED CVSS 7.5 HIGH

In libexpat through 2.4.9, there is a use-after free caused by overeager destruction of a shared DTD in XML_ExternalEntityParserCreate in out-of-memory situations.

Risk Scores

CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products

VendorProductVersions
Alpine:v3.23expat0, 0, 2.4.9-r0
Alpine:v3.14expat2.0.1-r0, 2.0.1-r1, 2.0.1-r2
Alpine:v3.20expat2.4.9-r0, 0, 2.4.9-r0
Alpine:v3.15expat2.0.1-r5, 2.0.1-r3, 2.2.9-r1
Alpine:v3.24expat0
Alpine:v3.19expat2.2.1-r0, 2.1.0-r2, 2.1.0-r1
Alpine:v3.21expat2.0.1-r0, 0, 2.0.1-r0
Alpine:v3.17expat2.0.1-r1, 2.0.1-r2, 2.0.1-r4
Alpine:v3.13expat2.2.10-r4, 0, 2.0.1-r0
Alpine:v3.18expat2.2.7-r1, 2.2.7-r0, 2.2.6-r0
Alpine:v3.22expat2.4.5-r0, 0, 2.4.9-r0
Alpine:v3.16expat0, 2.0.1-r0, 0

Timeline

  • Oct 24, 2022 CVE Published
  • Apr 30, 2026 Distribution Patch
  • Jun 15, 2026 CVE Updated
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