Source: libxml2 Version: 2.9.10+dfsg-6.6 Severity: important Tags: security upstream Forwarded: https://gitlab.gnome.org/GNOME/libxml2/-/issues/228 X-Debbugs-Cc: car...@debian.org, Debian Security Team <t...@security.debian.org>
Hi, The following vulnerability was published for libxml2. CVE-2021-3541[0]: | Exponential entity expansion attack bypasses all existing protection | mechanisms Technical details for the vulnerability are unfortunately not public, but it looks that the flaw is essentially a variant of the billion laughts attack (CVE-2003-1564) which can lead to denial of service for applications using libxml2. 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-2021-3541 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3541 [1] https://gitlab.gnome.org/GNOME/libxml2/-/issues/228 [2] https://gitlab.gnome.org/GNOME/libxml2/-/commit/8598060bacada41a0eb09d95c97744ff4e428f8e Please adjust the affected versions in the BTS as needed. Regards, Salvatore
