Package Management

Ubuntu 18.04 — keepalived — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — keepalived — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5188-1 Related CVEs: CVE-2021-44225 CVE-2018-19115 Upstream summary: It was discovered that Keepalived incorrectly handled certain messages. An attacker could possibly use this issue to access-control bypass. Table of contents Symptom […]

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Ubuntu 22.04 — linux-azure-6.2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — linux-azure-6.2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6608-1 Related CVEs: CVE-2023-6606 CVE-2023-6817 CVE-2023-6931 CVE-2023-6932 CVE-2024-0193 CVE-2023-37453 CVE-2023-3773 CVE-2023-39189  +12 more Upstream summary: It was discovered that the CIFS network file system implementation in the Linux kernel did […]

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Ubuntu 18.04 — clamav — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — clamav — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7011-2 Related CVEs: CVE-2024-20505 CVE-2024-20506 CVE-2023-20197 CVE-2023-20032 CVE-2023-20052 CVE-2022-20770 CVE-2022-20771 CVE-2022-20785  +12 more Upstream summary: USN-7011-1 fixed several vulnerabilities in ClamAV. This update provides the corresponding update for Ubuntu 16.04 […]

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Ubuntu 18.04 — python-py — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — python-py — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5138-1 Related CVEs: CVE-2020-29651 Upstream summary: The py.path.svnwc component of py (aka python-py) through v1.9.0 contains a regular expression with an ambiguous subpattern that is susceptible to catastrophic backtracing. This […]

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Ubuntu 14.04 — underscore — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — underscore — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4913-1 Related CVEs: CVE-2021-23358 Upstream summary: It was discovered that Underscore incorrectly handled certain inputs. An attacker could possibly use this issue to inject arbitrary code. Table of contents Symptom […]

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Ubuntu 20.04 — ldns — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — ldns — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5257-2 Related CVEs: CVE-2020-19860 CVE-2020-19861 Upstream summary: USN-5257-1 fixed several vulnerabilities in ldns. This update provides the corresponding update for Ubuntu 20.04 ESM and Ubuntu 22.04 ESM. Original advisory details: […]

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Ubuntu 18.04 — mercurial — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — mercurial — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5102-1 Related CVEs: CVE-2018-17983 CVE-2019-3902 Upstream summary: It was discovered that Mercurial mishandled symlinks in subrepositories. An attacker could use this issue to write arbitrary files to the target’s filesystem. […]

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Ubuntu 18.04 — libde265 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — libde265 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6764-1 Related CVEs: CVE-2023-51792 CVE-2023-27102 CVE-2023-27103 CVE-2023-43887 CVE-2023-47471 CVE-2023-49465 CVE-2023-49467 CVE-2023-49468  +12 more Upstream summary: It was discovered that libde265 could be made to allocate memory that exceeds the maximum […]

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Ubuntu 20.04 — rust-regex — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — rust-regex — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5610-1 Related CVEs: CVE-2022-24713 Upstream summary: Addison Crump discovered that rust-regex did not properly limit the complexity of the regular expressions (regex) it parses. An attacker could possibly use this […]

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Ubuntu 18.04 — python-pysaml2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — python-pysaml2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5066-1 Related CVEs: CVE-2021-21239 CVE-2020-5390 Upstream summary: Brian Wolff discovered that PySAML2 incorrectly validated cryptographic signatures. A remote attacker could possibly use this issue to alter SAML documents. Table of […]

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