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Published: 19 May 2021

There is a flaw in the xml entity encoding functionality of libxml2 in versions before 2.9.11. An attacker who is able to supply a crafted file to be processed by an application linked with the affected functionality of libxml2 could trigger an out-of-bounds read. The most likely impact of this flaw is to application availability, with some potential impact to confidentiality and integrity if an attacker is able to use memory information to further exploit the application.



CVSS 3 base score: 8.6


Package Release Status
Launchpad, Ubuntu, Debian
Released (2.9.10+dfsg-6.6)
Ubuntu 21.10 (Impish Indri) Not vulnerable
Ubuntu 21.04 (Hirsute Hippo)
Released (2.9.10+dfsg-6.3ubuntu0.1)
Ubuntu 20.04 LTS (Focal Fossa)
Released (2.9.10+dfsg-5ubuntu0.20.04.1)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (2.9.4+dfsg1-6.1ubuntu1.4)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (2.9.3+dfsg1-1ubuntu0.7+esm1)
Ubuntu 14.04 ESM (Trusty Tahr)
Released (2.9.1+dfsg1-3ubuntu4.13+esm2)