ubuntu

Ubuntu 20.04 — org-mode — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — org-mode — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7375-1 Related CVEs: CVE-2023-28617 CVE-2024-30202 CVE-2024-30205 CVE-2024-39331 Upstream summary: It was discovered that Org Mode did not correctly handle filenames containing shell metacharacters. An attacker could possibly use this issue […]

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Ubuntu 14.04 — lua5.1 — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — lua5.1 — 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-2338-1 Related CVEs: CVE-2014-5461 Upstream summary: It was discovered that Lua incorrectly handled certain vararg functions with a large number of fixed parameters. An attacker could use this issue to […]

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Ubuntu 18.04 — freetype — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — freetype — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7352-2 Related CVEs: CVE-2022-27406 CVE-2025-27363 CVE-2022-27404 CVE-2022-27405 CVE-2022-31782 CVE-2020-15999 Upstream summary: USN-7352-1 fixed a vulnerability in FreeType. This update provides the corresponding updates for Ubuntu 16.04 LTS and Ubuntu 18.04 […]

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Ubuntu 14.04 — optipng — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — optipng — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-3495-1 Related CVEs: CVE-2017-1000229 CVE-2015-7801 CVE-2015-7802 CVE-2016-2191 CVE-2016-3981 CVE-2016-3982 Upstream summary: It was discovered that OptiPNG incorrectly handled memory. A remote attacker could use this issue with a specially crafted […]

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Ubuntu 22.04 — nginx — multiple vulnerabilities (15 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — nginx — multiple vulnerabilities (15 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-8271-1 Related CVEs: CVE-2026-42945 CVE-2026-28753 CVE-2026-28755 CVE-2026-32647 CVE-2026-27651 CVE-2026-27784 CVE-2026-27654 CVE-2026-1642  +7 more Upstream summary: It was discovered that the nginx ngx_http_rewrite_module component incorrectly handled certain rewrite directives. A remote […]

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Ubuntu 24.04 — apr — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — apr — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7038-1 Related CVEs: CVE-2023-49582 Upstream summary: Thomas Stangner discovered a permission vulnerability in the Apache Portable Runtime (APR) library. A local attacker could possibly use this issue to read named […]

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Ubuntu 14.04 — liblwp-protocol-https-perl — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — liblwp-protocol-https-perl — 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-2292-1 Related CVEs: CVE-2014-3230 Upstream summary: It was discovered that the LWP::Protocol::https perl module incorrectly disabled peer certificate verification completely when only hostname verification was requested to be disabled. If […]

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Ubuntu 14.04 — libidn — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — libidn — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-3434-1 Related CVEs: CVE-2017-14062 CVE-2015-2059 CVE-2015-8948 CVE-2016-6261 CVE-2016-6262 CVE-2016-6263 Upstream summary: It was discovered that Libidn incorrectly handled decoding certain digits. A remote attacker could use this issue to cause […]

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Ubuntu 20.04 — flask-security — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — flask-security — 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-6792-1 Related CVEs: CVE-2021-23385 Upstream summary: Naom Moshe discovered that Flask-Security incorrectly validated URLs. An attacker could use this issue to redirect users to arbitrary URLs. Table of contents Symptom […]

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Ubuntu 24.04 — znc — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — znc — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6990-1 Related CVEs: CVE-2024-39844 Upstream summary: Johannes Kuhn (DasBrain) discovered that znc incorrectly handled user input under certain operations. An attacker could possibly use this issue to execute arbitrary code […]

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