Source: zlib
Version: 1:1.2.11.dfsg-4
Severity: important
Tags: security upstream
X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Control: found -1 1:1.2.11.dfsg-1
Control: found -1 1:1.2.11.dfsg-2+deb11u1

Hi,

The following vulnerability was published for zlib.

CVE-2022-37434[0]:
| zlib through 1.2.12 has a heap-based buffer over-read or buffer
| overflow in inflate in inflate.c via a large gzip header extra field.
| NOTE: only applications that call inflateGetHeader are affected. Some
| common applications bundle the affected zlib source code but may be
| unable to call inflateGetHeader (e.g., see the nodejs/node reference).


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2022-37434
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-37434
[1] 
https://github.com/madler/zlib/commit/eff308af425b67093bab25f80f1ae950166bece1
[2] https://github.com/ivd38/zlib_overflow

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore

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