USN-6586-1: FreeImage vulnerabilities

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It was discovered that FreeImage incorrectly handled certain memory
operations. If a user were tricked into opening a crafted TIFF file, a
remote attacker could use this issue to cause a heap buffer overflow,
resulting in a denial of service attack. This issue only affected Ubuntu
16.04 LTS and Ubuntu 20.04 LTS. (CVE-2019-12211)

It was discovered that FreeImage incorrectly processed images under
certain circumstances. If a user were tricked into opening a crafted TIFF
file, a remote attacker could possibly use this issue to cause a stack
exhaustion condition, resulting in a denial of service attack. This issue
only affected Ubuntu 16.04 LTS and Ubuntu 20.04 LTS. (CVE-2019-12213)

It was discovered that FreeImage incorrectly processed certain images.
If a user or automated system were tricked into opening a specially
crafted image file, a remote attacker could possibly use this issue to
cause a denial of service or execute arbitrary code. (CVE-2020-21427,
CVE-2020-21428)

It was discovered that FreeImage incorrectly processed certain images.
If a user or automated system were tricked into opening a specially
crafted PFM file, an attacker could possibly use this issue to cause a
denial of service. (CVE-2020-22524)

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USN-6579-2: Xerces-C++ vulnerability

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USN-6579-1 fixed a vulnerability in Xerces-C++. This update provides the
corresponding update for Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 23.04
and Ubuntu 23.10.

Original advisory details:

It was discovered that Xerces-C++ was not properly handling memory
management operations when parsing XML data containing external DTDs,
which could trigger a use-after-free error. If a user or automated system
were tricked into processing a specially crafted XML document, an attacker
could possibly use this issue to cause a denial of service or execute
arbitrary code.

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