[xml/sgml-pkgs] Bug#987738: libxml2: CVE-2021-3517

[Salvatore Bonaccorso]

Source: libxml2
Version: 2.9.10+dfsg-6.3
Severity: important
Tags: security upstream
Forwarded: https://gitlab.gnome.org/GNOME/libxml2/-/issues/235
X-Debbugs-Cc: carnil at debian.org, Debian Security Team <team at security.debian.org>

Hi,

The following vulnerability was published for libxml2.

CVE-2021-3517[0]:
| heap-based buffer overflow in xmlEncodeEntitiesInternal() in entities.c

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-2021-3517
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3517
[1] https://gitlab.gnome.org/GNOME/libxml2/-/issues/235
[2] https://gitlab.gnome.org/GNOME/libxml2/-/commit/bf22713507fe1fc3a2c4b525cf0a88c2dc87a3a2

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore