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ALPINE-CVE-2021-45960

ALPINE-CVE-2021-45960 PUBLISHED CVSS 8.800000190734863 HIGH

In Expat (aka libexpat) before 2.4.3, a left shift by 29 (or more) places in the storeAtts function in xmlparse.c can lead to realloc misbehavior (e.g., allocating too few bytes, or only freeing memory).

Risk Scores

CVSS 3.1
8.800000190734863
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Products

VendorProductVersions
Alpine:v3.18expat0, 2.2.10-r0, 2.2.10-r1
Alpine:v3.15expat2.3.0-r0, 0, 2.0.1-r0
Alpine:v3.19expat2.0.1-r6, 2.1.0-r0, 2.1.0-r1
Alpine:v3.23expat2.1.0-r0, 2.2.10-r1, 2.2.10-r0
Alpine:v3.21expat2.2.10-r0, 2.2.2-r0, 2.2.10-r1
Alpine:v3.20expat2.0.1-r1, 0, 2.0.1-r0
Alpine:v3.16expat0, 2.0.1-r0, 2.0.1-r1
Alpine:v3.13expat2.1.0-r0, 2.1.0-r1, 2.0.1-r1
Alpine:v3.14expat2.2.10-r0, 0, 2.0.1-r0
Alpine:v3.17expat2.0.1-r5, 0, 2.4.2-r0
Alpine:v3.22expat2.2.0-r1, 0, 2.4.2-r0
Alpine:v3.12expat2.0.1-r2, 2.0.1-r0, 0
Alpine:v3.24expat0

Timeline

  • Jan 1, 2022 CVE Published
  • Apr 30, 2026 Distribution Patch
  • Jun 15, 2026 CVE Updated
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