Bug#1069191: glibc: GLIBC-SA-2024-0004/CVE-2024-2961: ISO-2022-CN-EXT: fix out-of-bound writes when writing escape sequence

[Salvatore Bonaccorso <carnil@debian.org>]

Source: glibc
Version: 2.37-17
Severity: important
Tags: security upstream
X-Debbugs-Cc: carnil@debian.org, Debian Security Team <team@security.debian.org>
Control: found -1 2.37-15
Control: found -1 2.36-9+deb12u5
Control: found -1 2.36-9+deb12u4
Control: found -1 2.36-9
Control: found -1 2.31-13+deb11u8
Control: found -1 2.31-13

Hi,

The following vulnerability was published for glibc.

CVE-2024-2961[0]:
| The iconv() function in the GNU C Library versions 2.39 and older
| may overflow the output buffer passed to it by up to 4 bytes when
| converting strings to the ISO-2022-CN-EXT character set, which may
| be used to crash an application or overwrite a neighbouring
| variable.


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-2024-2961
    https://www.cve.org/CVERecord?id=CVE-2024-2961
[1] https://www.openwall.com/lists/oss-security/2024/04/17/9

Regards,
Salvatore