AZL-105345
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-105345.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-105345
- Upstream
- Published
- 2026-08-24T14:17:02Z
- Modified
- 2026-10-03T05:35:10Z
- Summary
- CVE-2026-76844 affecting package zlib 1.3.2-1
- Details
-
zlib 1.2.11 through 1.3.2 contains a heap buffer overflow: after an underlying write() fails, gz_write() returns without resetting strm.next_in, leaving it pointed at the caller's buffer. A later gz* write call then derives a position from the stale pointer and writes past a heap allocation; any write() failure reaches it, including EPIPE on a blocking descriptor, and in versions before 1.3.1.2 the failed write must be followed by a gzclearerr() call.
- References