VDB

ALPINE-CVE-2023-1999

ALPINE-CVE-2023-1999 PUBLISHED CVSS 7.5 HIGH

There exists a use after free/double free in libwebp. An attacker can use the ApplyFiltersAndEncode() function and loop through to free best.bw and assign best = trial pointer. The second loop will then return 0 because of an Out of memory error in VP8 encoder, the pointer is still assigned to trial and the AddressSanitizer will attempt a double free.

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:v3.19libwebp1.0.2-r0, 1.0.0-r0, 0.6.1-r0
Alpine:v3.24libwebp0.4.2
Alpine:v3.20libwebp0.5.0-r0, 0.6.0-r0, 0.1.2-r0
Alpine:v3.15libwebp1.1.0-r0, 1.0.3-r0, 1.0.2-r0
Alpine:v3.23libwebp0.5.2-r0, 0.5.1-r0, 0.5.0-r0
Alpine:v3.18libwebp0.3.0-r0, 0, 0.1.2-r0
Alpine:v3.22libwebp1.0.2-r0, 1.0.1-r0, 1.0.0-r0
Alpine:v3.21libwebp0.4.2, 1.3.0-r2, 1.3.0-r1
Alpine:v3.16libwebp1.2.0-r2, 0.4.3-r0, 0.4.1-r0
Alpine:v3.17libwebp0.5.2-r0, 0.5.1-r0, 0.5.0-r0

Timeline

  • Jun 20, 2023 CVE Published
  • Apr 30, 2026 Distribution Patch
  • Jul 8, 2026 CVE Updated
Open in Interactive Console →
$ Console Community · 100/wk Open console ›