Debian/zlib: medium 5.5
zlib before 1.3.2 allows CPU consumption via crc32_combine64 and crc32_combine_gen64 because x2nmodp can do right shifts within a loop that has no termination condition.
Action: Upgrade zlib to 1:1.3.dfsg+really1.3.2-1 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1:1.3.dfsg+really1.3.2-1 | - |
Fixed versions
| 1:1.3.dfsg+really1.3.2-1 |
Sources
- osv: DEBIAN-CVE-2026-27171#Debian:14/zlib
- https://security-tracker.debian.org/tracker/CVE-2026-27171
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