Security Hardening

Debian 13 — mailman3 — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — mailman3 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-34337 Upstream summary: An issue was discovered in Mailman Core before 3.3.5. An attacker with access to the REST API could use timing attacks to determine the value of […]

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Debian 11 — buildbot — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — buildbot — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-2959 CVE-2009-2967 CVE-2019-12300 CVE-2019-7313 Upstream summary: Cross-site scripting (XSS) vulnerability in the waterfall web status view (status/web/waterfall.py) in Buildbot 0.7.6 through 0.7.11p1 allows remote attackers to inject arbitrary […]

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Debian 10 — libproxy — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — libproxy — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-25219 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Debian 13 — libmcrypt — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — libmcrypt — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2003-0031 CVE-2003-0032 Upstream summary: Multiple buffer overflows in libmcrypt before 2.5.5 allow attackers to cause a denial of service (crash). Table of contents Symptom & Impact Environment & […]

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Debian 10 — libhibernate3-java — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — libhibernate3-java — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-25638 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Debian 13 — apcupsd — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — apcupsd — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2003-0098 CVE-2003-0099 Upstream summary: Unknown vulnerability in apcupsd before 3.8.6, and 3.10.x before 3.10.5, allows remote attackers to gain root privileges, possibly via format strings in a request […]

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Debian 11 — node-kind-of — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — node-kind-of — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-20149 Upstream summary: ctorName in index.js in kind-of v6.0.2 allows external user input to overwrite certain internal attributes via a conflicting name, as demonstrated by 'constructor': {'name':'Symbol'}. Hence, […]

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Debian 13 — vorbis-tools — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — vorbis-tools — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-9638 CVE-2014-9639 CVE-2014-9640 CVE-2015-6749 CVE-2017-11331 CVE-2023-43361 CVE-2026-34253 Upstream summary: oggenc in vorbis-tools 1.4.0 allows remote attackers to cause a denial of service (divide-by-zero error and crash) via a […]

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Debian 12 — a2ps — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — a2ps — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2001-1593 CVE-2004-1170 CVE-2004-1377 CVE-2014-0466 CVE-2015-8107 Upstream summary: The tempname_ensure function in lib/routines.h in a2ps 4.14 and earlier, as used by the spy_user function and possibly other functions, allows […]

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