chris

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

Ubuntu 14.04 — gtk-vnc — 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-3203-1 Related CVEs: CVE-2017-5884 CVE-2017-5885 Upstream summary: It was discovered that gtk-vnc incorrectly validated certain data. A malicious server could use this issue to cause gtk-vnc to crash, resulting in […]

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

Ubuntu 18.04 — libblockdev — 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-7577-2 Related CVEs: CVE-2025-6019 Upstream summary: USN-7577-1 fixed a vulnerability in libblockdev. This update provides the corresponding update for Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. Original advisory details: It […]

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Ubuntu 18.04 — mbedtls — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — mbedtls — multiple vulnerabilities (7 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-8123-1 Related CVEs: CVE-2025-47917 CVE-2021-44732 CVE-2025-48965 CVE-2025-52497 CVE-2025-52496 CVE-2025-27810 CVE-2024-23775 Upstream summary: It was discovered that Mbed TLS incorrectly handled memory allocation failures. A remote attacker could possibly use this […]

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Ubuntu 16.04 — mupdf — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — mupdf — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7825-1 Related CVEs: CVE-2020-26683 CVE-2018-16647 CVE-2021-37220 CVE-2018-10289 CVE-2018-16648 CVE-2018-1000036 CVE-2021-3407 CVE-2020-21896 Upstream summary: It was discovered that MuPDF incorrectly managed memory, resulting in a memory leak. An attacker could possibly […]

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

Ubuntu 24.04 — libtpms — 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-7617-1 Related CVEs: CVE-2025-49133 Upstream summary: It was discovered that libtpms did not properly manage memory when performing crafted cryptographic operations. An attacker could possibly use this issue to cause […]

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Ubuntu 20.04 — trafficserver — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — trafficserver — 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-7469-1 Related CVEs: CVE-2023-44487 Upstream summary: It was discovered that Apache Traffic Server exhibited poor server resource management in its HTTP/2 protocol. An attacker could possibly use this issue to […]

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Ubuntu 20.04 — radare2 — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — radare2 — multiple vulnerabilities (3 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-7915-1 Related CVEs: CVE-2025-60361 CVE-2025-60360 CVE-2025-60359 Upstream summary: It was discovered that Radare2 contained several memory leaks. An attacker could possibly use these issues to cause a denial of service. […]

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

Ubuntu 18.04 — libpcap — 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-4221-1 Related CVEs: CVE-2019-15165 Upstream summary: It was discovered that libpcap did not properly validate PHB headers in some situations. An attacker could use this to cause a denial of […]

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

Ubuntu 22.04 — rar — 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-7349-1 Related CVEs: CVE-2022-30333 CVE-2023-40477 Upstream summary: It was discovered that RAR incorrectly handled certain paths. If a user or automated system were tricked into extracting a specially crafted RAR […]

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Ubuntu 22.04 — rubygems — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — rubygems — multiple vulnerabilities (3 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-7747-1 Related CVEs: CVE-2023-36617 CVE-2025-24294 CVE-2023-28755 Upstream summary: It was discovered that RubyGems incorrectly handled certain regular expressions. An attacker could possibly use this issue to cause RubyGems to consume […]

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