Ubuntu Responds to More libde265 Vulnerabilities

Rohan Timalsina

March 14, 2024 - TuxCare expert team

Recently, the Ubuntu security team released updates aimed at mitigating libde265 vulnerabilities across several releases, including Ubuntu 23.10, Ubuntu 22.04 LTS, Ubuntu 20.04 LTS, Ubuntu 18.04, and Ubuntu 16.04. These vulnerabilities pose significant risks, including denial of service attacks and potential execution of arbitrary code when specially crafted files are opened.

libde265 Vulnerabilities Fixed in Ubuntu

Out-of-Bounds Write Vulnerabilities (CVE-2022-43244, CVE-2022-43249, CVE-2022-43250, CVE-2022-47665, CVE-2023-25221, CVE-2023-43887, CVE-2023-47471, CVE-2023-49465, CVE-2023-49467, CVE-2023-49468, CVE-2023-27103)

These identified vulnerabilities allow libde265 to write out of bounds. An attacker could use these flaws to cause a denial of service or execute arbitrary code if they managed to mislead a user or automated system into opening a specially crafted file.

Invalid Memory Dereferencing Vulnerabilities (CVE-2023-24751, CVE-2023-24752, CVE-2023-24754, CVE-2023-24755, CVE-2023-24756, CVE-2023-24757, CVE-2023-24758, CVE-2023-27102)

This set of vulnerabilities allows attackers to dereference invalid memory. By luring users or automated systems into opening specially crafted files, attackers can exploit these weaknesses to cause denial of service, posing a severe threat to system security.

Out-of-Bounds Read Vulnerability (CVE-2022-43245)

Another vulnerability involves libde265 reading out of bounds with a CVSS v3 score of 6.5. Similar to the previous case, opening a maliciously crafted video file could lead to denial of service scenarios.

Mitigation Measures

To address these vulnerabilities and safeguard systems, it’s crucial to apply the security updates provided by the Ubuntu security team. These updates include patches designed to mitigate the identified libde265 vulnerabilities across supported Ubuntu releases. Users and administrators are strongly encouraged to promptly install these updates to ensure the security and integrity of their systems.

Ubuntu 16.04 and Ubuntu 18.04 users can utilize TuxCare’s Extended Lifecycle Support to receive vendor-grade security patches for their end-of-life Ubuntu systems even after the EOL date. Learn more about Extended Lifecycle Support.

While vulnerabilities in software are inevitable, proactive measures such as timely patching play a vital role in maintaining the security posture of systems and protecting against potential threats. Stay vigilant, stay updated, and prioritize security to mitigate risks effectively.

Sources: USN-6659-1 and USN-6677-1

Summary