Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-27181.json
JSON Data
https://api.test.osv.dev/v1/vulns/AZL-27181
Upstream
Published
2023-06-20T12:15:09Z
Modified
2026-04-01T05:09:00.179507Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
CVE-2023-1999 affecting package libwebp for versions less than 1.3.2-1
Details

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.

References

Affected packages

Azure Linux:2 / libwebp

Package

Name
libwebp
Purl
pkg:rpm/azure-linux/libwebp

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.3.2-1

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-27181.json"