libxml2 vulnerabilities

It was discovered that libxml2 incorrectly handled certain memory
operations. A remote attacker could use this issue to cause libxml2 to
crash, resulting in a denial of service, or possibly execute arbitrary
code. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, and
Ubuntu 18.04 LTS. (CVE-2022-49043)

It was discovered that the libxml2 xmllint tool incorrectly handled
certain memory operations. If a user or automated system were tricked into
running xmllint on a specially crafted xml file, a remote attacker could
cause xmllint to crash, resulting in a denial of service. This issue only
affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, and Ubuntu 18.04 LTS.
(CVE-2024-34459)

It was discovered that libxml2 did not properly manage memory. An attacker
could possibly use this issue to cause a denial of service or execute
arbitrary code. (CVE-2024-56171)

It was discovered that libxml2 could be made to write out of bounds. An
attacker could possibly use this issue to cause a denial of service or
execute arbitrary code. (CVE-2025-24928)

It was discovered that libxml2 could be made to dereference invalid memory.
An attacker could possibly use this issue to cause a denial of service.
(CVE-2025-27113)