chris

Ubuntu 20.04 — libspreadsheet-parseexcel-perl — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — libspreadsheet-parseexcel-perl — 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-6781-1 Related CVEs: CVE-2023-7101 Upstream summary: Le Dinh Hai discovered that Spreadsheet::ParseExcel was passing unvalidated input from a file into a string-type "eval". An attacker could craft a malicious file […]

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Ubuntu 22.04 — libpng1.6 — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — libpng1.6 — multiple vulnerabilities (11 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-8251-1 Related CVEs: CVE-2026-33416 CVE-2026-34757 CVE-2026-33636 CVE-2026-25646 CVE-2026-22695 CVE-2025-66293 CVE-2026-22801 CVE-2025-64720  +3 more Upstream summary: It was discovered that libpng incorrectly handled memory when processing certain PNG files. If a […]

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Ubuntu 14.04 — ubufox — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — ubufox — multiple vulnerabilities (4 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-3391-2 Related CVEs: https://launchpad.net/bugs/1711137 https://launchpad.net/bugs/1498681 https://launchpad.net/bugs/1483858 https://launchpad.net/bugs/1398174 Upstream summary: USN-3391-1 fixed vulnerabilities in Firefox. This update provides the corresponding update for Ubufox. Original advisory details: Multiple security issues were discovered […]

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Ubuntu 18.04 — quagga — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — quagga — multiple vulnerabilities (3 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-7230-1 Related CVEs: CVE-2024-44070 CVE-2023-41358 CVE-2023-41360 Upstream summary: Iggy Frankovic discovered that Quagga incorrectly handled certain BGP messages. A remote attacker could possibly use this issue to cause Quagga to […]

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Ubuntu 22.04 — python-pymysql — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — python-pymysql — vulnerability — 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-6801-1 Related CVEs: CVE-2024-36039 Upstream summary: It was discovered that PyMySQL incorrectly escaped untrusted JSON input. An attacker could possibly use this issue to perform SQL injection attacks. Table of […]

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

Ubuntu 24.04 — twisted — 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-6988-1 Related CVEs: CVE-2024-41671 CVE-2024-41810 Upstream summary: Ben Kallus discovered that Twisted incorrectly handled response order when processing multiple HTTP requests. A remote attacker could possibly use this issue to […]

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

Ubuntu 18.04 — pmix — 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-6434-1 Related CVEs: CVE-2023-41915 Upstream summary: Francois Diakhate discovered that PMIx did not properly handle race conditions in the pmix library, which could lead to unwanted privilege escalation. An attacker […]

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Ubuntu 22.04 — atril — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — atril — multiple vulnerabilities (4 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-7274-1 Related CVEs: CVE-2019-1010006 CVE-2019-11459 CVE-2023-51698 CVE-2023-52076 Upstream summary: It was discovered that Atril incorrectly handled certain PDF files. An attacker could possibly use this issue to cause a denial […]

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Ubuntu 16.04 — pam — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — pam — multiple vulnerabilities (3 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-6588-2 Related CVEs: CVE-2024-22365 CVE-2022-28321 https://launchpad.net/bugs/2006073 Upstream summary: USN-6588-1 fixed a vulnerability in PAM. This update provides the corresponding updates for Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, and Ubuntu 18.04 […]

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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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