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zlibzlib before 1.3.2 allows CPU consumption via crc32_combine64 and crc32_combine_gen64 because x2nmodp…

Risk 25
Severity
5.5
EPSS
0.01%
AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

zlib before 1.3.2 allows CPU consumption via crc32combine64 and crc32combinegen64 because x2nmodp can do right shifts within a loop that has no termination condition.

First published (updated )
CVE-2026-27171

redhat/zlibBuffer Overflow, Use After Free, Race Condition, Input Validation, SQL Injection

Risk 91
Severity
9.8
Buffer Overflow, Use After Free, Race Condition, Input Validation, SQL Injection
AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H

A security vulnerability was found in zlib. The flaw triggered a heap-based buffer in inflate in the inflate.c function via a large gzip header extra field. This flaw is only applicable in the call inflateGetHeader.

1 / 117
First published (updated )
CVE-2022-37434

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