There's a flaw in libxml2 in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by an application linked with libxml2 could trigger a use-after-free. The greatest impact from this flaw is to confidentiality, integrity, and availability.
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "ubuntu_priority": "medium", "binaries": [ { "libxml2-dev": "2.9.1+dfsg1-3ubuntu4.13+esm2", "libxml2-utils-dbgsym": "2.9.1+dfsg1-3ubuntu4.13+esm2", "python-libxml2-dbgsym": "2.9.1+dfsg1-3ubuntu4.13+esm2", "libxml2-utils": "2.9.1+dfsg1-3ubuntu4.13+esm2", "libxml2-doc": "2.9.1+dfsg1-3ubuntu4.13+esm2", "python-libxml2": "2.9.1+dfsg1-3ubuntu4.13+esm2", "libxml2": "2.9.1+dfsg1-3ubuntu4.13+esm2", "libxml2-udeb-dbgsym": "2.9.1+dfsg1-3ubuntu4.13+esm2", "python-libxml2-dbg": "2.9.1+dfsg1-3ubuntu4.13+esm2", "libxml2-dbgsym": "2.9.1+dfsg1-3ubuntu4.13+esm2", "libxml2-utils-dbg": "2.9.1+dfsg1-3ubuntu4.13+esm2", "libxml2-dev-dbgsym": "2.9.1+dfsg1-3ubuntu4.13+esm2", "libxml2-dbg": "2.9.1+dfsg1-3ubuntu4.13+esm2", "libxml2-udeb": "2.9.1+dfsg1-3ubuntu4.13+esm2" } ] }
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "ubuntu_priority": "medium", "binaries": [ { "libxml2": "2.9.3+dfsg1-1ubuntu0.7+esm1", "libxml2-udeb-dbgsym": "2.9.3+dfsg1-1ubuntu0.7+esm1", "libxml2-dev": "2.9.3+dfsg1-1ubuntu0.7+esm1", "libxml2-utils-dbgsym": "2.9.3+dfsg1-1ubuntu0.7+esm1", "libxml2-dbg": "2.9.3+dfsg1-1ubuntu0.7+esm1", "libxml2-utils": "2.9.3+dfsg1-1ubuntu0.7+esm1", "libxml2-doc": "2.9.3+dfsg1-1ubuntu0.7+esm1", "libxml2-dev-dbgsym": "2.9.3+dfsg1-1ubuntu0.7+esm1", "libxml2-dbgsym": "2.9.3+dfsg1-1ubuntu0.7+esm1", "libxml2-udeb": "2.9.3+dfsg1-1ubuntu0.7+esm1", "libxml2-utils-dbg": "2.9.3+dfsg1-1ubuntu0.7+esm1", "python-libxml2": "2.9.3+dfsg1-1ubuntu0.7+esm1", "python-libxml2-dbg": "2.9.3+dfsg1-1ubuntu0.7+esm1" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "libxml2": "2.9.4+dfsg1-6.1ubuntu1.4", "libxml2-dev": "2.9.4+dfsg1-6.1ubuntu1.4", "libxml2-utils-dbgsym": "2.9.4+dfsg1-6.1ubuntu1.4", "libxml2-utils": "2.9.4+dfsg1-6.1ubuntu1.4", "libxml2-doc": "2.9.4+dfsg1-6.1ubuntu1.4", "python3-libxml2": "2.9.4+dfsg1-6.1ubuntu1.4", "libxml2-dbg": "2.9.4+dfsg1-6.1ubuntu1.4", "python3-libxml2-dbg": "2.9.4+dfsg1-6.1ubuntu1.4", "python-libxml2-dbg": "2.9.4+dfsg1-6.1ubuntu1.4", "libxml2-udeb": "2.9.4+dfsg1-6.1ubuntu1.4", "python-libxml2": "2.9.4+dfsg1-6.1ubuntu1.4" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "libxml2": "2.9.10+dfsg-5ubuntu0.20.04.1", "libxml2-dev": "2.9.10+dfsg-5ubuntu0.20.04.1", "libxml2-utils-dbgsym": "2.9.10+dfsg-5ubuntu0.20.04.1", "libxml2-utils": "2.9.10+dfsg-5ubuntu0.20.04.1", "libxml2-doc": "2.9.10+dfsg-5ubuntu0.20.04.1", "python3-libxml2": "2.9.10+dfsg-5ubuntu0.20.04.1", "python-libxml2-dbg": "2.9.10+dfsg-5ubuntu0.20.04.1", "libxml2-dbgsym": "2.9.10+dfsg-5ubuntu0.20.04.1", "python3-libxml2-dbg": "2.9.10+dfsg-5ubuntu0.20.04.1", "python-libxml2": "2.9.10+dfsg-5ubuntu0.20.04.1" } ] }