Category Archives: Advisories

Advisories

USN-6695-1: TeX Live vulnerabilities

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It was discovered that TeX Live incorrectly handled certain memory
operations in the embedded axodraw2 tool. An attacker could possibly use
this issue to cause TeX Live to crash, resulting in a denial of service.
This issue only affected Ubuntu 20.04 LTS. (CVE-2019-18604)

It was discovered that TeX Live allowed documents to make arbitrary
network requests. If a user or automated system were tricked into opening a
specially crafted document, a remote attacker could possibly use this issue
to exfiltrate sensitive information, or perform other network-related
attacks. This issue only affected Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS.
(CVE-2023-32668)

It was discovered that TeX Live incorrectly handled certain TrueType fonts.
If a user or automated system were tricked into opening a specially crafted
TrueType font, a remote attacker could use this issue to cause TeX Live to
crash, resulting in a denial of service, or possibly execute arbitrary
code. (CVE-2024-25262)

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Advisories

USN-6694-1: Expat vulnerabilities

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It was discovered that Expat could be made to consume large amounts of
resources. If a user or automated system were tricked into processing
specially crafted input, an attacker could possibly use this issue to cause
a denial of service. (CVE-2023-52425, CVE-2024-28757)

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Advisories

USN-6673-2: python-cryptography vulnerability

Read Time:20 Second

USN-6673-1 provided a security update for python-cryptography.
This update provides the corresponding update for Ubuntu 16.04 LTS.

Original advisory details:

Hubert Kario discovered that python-cryptography incorrectly handled
errors returned by the OpenSSL API when processing incorrect padding in
RSA PKCS#1 v1.5. A remote attacker could possibly use this issue to expose
confidential or sensitive information. (CVE-2023-50782)

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