Bug 2440530 (CVE-2026-27171) - CVE-2026-27171 zlib: zlib: Denial of Service via infinite loop in CRC32 combine functions
Summary: CVE-2026-27171 zlib: zlib: Denial of Service via infinite loop in CRC32 combi...
Keywords:
Status: NEW
Alias: CVE-2026-27171
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-02-18 04:01 UTC by OSIDB Bzimport
Modified: 2026-02-18 10:50 UTC (History)
32 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-02-18 04:01:09 UTC 
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.
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