Troubleshooting

Debian 11 — yubiserver — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — yubiserver — multiple vulnerabilities (2 CVEs) — 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-2015-0842 CVE-2015-0843 Upstream summary: yubiserver before 0.6 is prone to SQL injection issues, potentially leading to an authentication bypass. Table of contents Symptom & Impact Environment & Reproduction […]

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Debian 13 — libemf — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — libemf — multiple vulnerabilities (5 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-2020-11863 CVE-2020-11864 CVE-2020-11865 CVE-2020-11866 CVE-2020-13999 Upstream summary: libEMF (aka ECMA-234 Metafile Library) through 1.0.11 allows denial of service (issue 1 of 2). Table of contents Symptom & Impact […]

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Debian 12 — pngcrush — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — pngcrush — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-7700 Upstream summary: Double-free vulnerability in the sPLT chunk structure and png.c in pngcrush before 1.7.87 allows attackers to have unspecified impact via unknown vectors. Table of contents […]

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Debian 11 — adequate — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — adequate — 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-2013-6409 Upstream summary: Debian adequate before 0.8.1, when run by root with the –user option, allows local users to hijack the tty and possibly gain privileges via the […]

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Debian 11 — lyskom-server — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — lyskom-server — 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-2003-0366 Upstream summary: lyskom-server 2.0.7 and earlier allows unauthenticated users to cause a denial of service (CPU consumption) via a large query. Table of contents Symptom & Impact […]

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Debian 11 — python-mkdocs — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — python-mkdocs — 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-2021-40978 Upstream summary: The mkdocs 1.2.2 built-in dev-server allows directory traversal using the port 8000, enabling remote exploitation to obtain :sensitive information. NOTE: the vendor has disputed this […]

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Debian 11 — ruby-will-paginate — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — ruby-will-paginate — 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-2013-6459 Upstream summary: Cross-site scripting (XSS) vulnerability in the will_paginate gem before 3.0.5 for Ruby allows remote attackers to inject arbitrary web script or HTML via vectors involving […]

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Debian 12 — bacula — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — bacula — multiple vulnerabilities (6 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-2005-2096 CVE-2005-2995 CVE-2007-5626 CVE-2008-5373 CVE-2012-4430 CVE-2020-11061 Upstream summary: zlib 1.2 and later versions allows remote attackers to cause a denial of service (crash) via a crafted compressed stream […]

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Debian 13 — libplack-middleware-session-perl — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — libplack-middleware-session-perl — multiple vulnerabilities (3 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-2013-10031 CVE-2014-125112 CVE-2025-40923 Upstream summary: Plack-Middleware-Session versions before 0.17 may be vulnerable to HMAC comparison timing attacks Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Debian 11 — ruby-globalid — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — ruby-globalid — 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-2023-22799 Upstream summary: A ReDoS based DoS vulnerability in the GlobalID <1.0.1 which could allow an attacker supplying a carefully crafted input can cause the regular expression engine […]

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