ubuntu

Ubuntu 18.04 — axel — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — axel — 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-4872-1 Related CVEs: CVE-2020-13614 Upstream summary: It was discovered that Axel did not properly verify the certificates for hostnames. An attacker could use this vulnerability to impersonate another server and […]

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Ubuntu 22.04 — trafficserver — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — trafficserver — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8050-1 Related CVEs: CVE-2024-50305 CVE-2023-44487 Upstream summary: Masakazu Kitajo discovered that Apache Traffic Server did not properly handle the Valid Host header field. An attacker could possibly use this issue […]

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Ubuntu 18.04 — cinnamon — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — cinnamon — 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-4844-1 Related CVEs: CVE-2018-13054 Upstream summary: Matthias Gerstner discovered that the cinnamon-settings-users utility in Cinnamon did not safely handle symlinks. An unprivileged attacker could potentially use this vulnerability to overwrite […]

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Ubuntu 14.04 — nova — multiple vulnerabilities (17 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — nova — multiple vulnerabilities (17 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-3449-1 Related CVEs: CVE-2015-3241 CVE-2015-3280 CVE-2015-5162 CVE-2015-7548 CVE-2015-7713 CVE-2015-8749 CVE-2016-2140 CVE-2014-3608  +9 more Upstream summary: George Shuklin discovered that OpenStack Nova incorrectly handled the migration process. A remote authenticated user […]

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Ubuntu 22.04 — nghttp2 — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — nghttp2 — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8233-1 Related CVEs: CVE-2026-27135 CVE-2019-9511 CVE-2019-9513 CVE-2023-44487 CVE-2024-28182 Upstream summary: Andrew MacPherson discovered that nghttp2 did not properly validate internal state when the session termination API was called. A remote […]

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Ubuntu 14.04 — vlc — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — vlc — multiple vulnerabilities (2 CVEs) — 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-4805-1 Related CVEs: CVE-2017-10699 CVE-2018-11529 Upstream summary: It was discovered that VLC mishandled certain crafted media files. An attacker could use this vulnerability to cause a denial of service (crash) […]

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Ubuntu 24.04 — pyasn1 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — pyasn1 — multiple vulnerabilities (2 CVEs) — 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-8129-1 Related CVEs: CVE-2026-30922 CVE-2026-23490 Upstream summary: It was discovered that pyasn1 incorrectly handled recursion when decoding ASN.1 data. An attacker could use this issue to cause pyasn1 to consume […]

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Ubuntu 18.04 — keystone — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — keystone — multiple vulnerabilities (4 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-4480-1 Related CVEs: CVE-2020-12689 CVE-2020-12690 CVE-2020-12691 CVE-2020-12692 Upstream summary: It was discovered that OpenStack Keystone incorrectly handled EC2 credentials. An authenticated attacker with a limited scope could possibly create EC2 […]

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Ubuntu 18.04 — librelp — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — librelp — 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-4828-1 Related CVEs: CVE-2018-1000140 Upstream summary: It was discovered that librelp did not properly manage x509 certificates, leading to a stack-based buffer overflow. A remote attacker could possibly use this […]

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Ubuntu 18.04 — libtomcrypt — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — libtomcrypt — 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-4868-1 Related CVEs: CVE-2019-17362 Upstream summary: It was discovered that LibTomCrypt incorrectly handled certain inputs. An attacker could possibly use this issue to cause a denial of service or read […]

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