Security Hardening

Debian 12 — fwbuilder — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — fwbuilder — multiple vulnerabilities (2 CVEs) — 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-2008-4956 CVE-2009-4664 Upstream summary: fwb_install in fwbuilder 2.1.19 allows local users to overwrite arbitrary files via a symlink attack on a /tmp/ssh-agent.##### temporary file. Table of contents Symptom […]

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Debian 12 — qtvirtualkeyboard-opensource-src — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — qtvirtualkeyboard-opensource-src — 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-2018-19865 Upstream summary: A keystroke logging issue was discovered in Virtual Keyboard in Qt 5.7.x, 5.8.x, 5.9.x, 5.10.x, and 5.11.x before 5.11.3. Table of contents Symptom & Impact […]

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

Debian 11 — apachetop — 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-2005-2660 Upstream summary: apachetop 0.12.5 and earlier, when running in debug mode, allows local users to create or append to arbitrary files via a symlink attack on atop.debug. […]

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Debian 11 — sleuthkit — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — sleuthkit — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2007-4195 CVE-2007-4196 CVE-2007-4197 CVE-2007-4198 CVE-2007-4199 CVE-2007-4200 CVE-2012-5619 CVE-2017-13755  +12 more Upstream summary: Use-after-free vulnerability in ext2fs.c in Brian Carrier The Sleuth Kit (TSK) before 2.09 allows user-assisted remote […]

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Debian 12 — devil — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — devil — multiple vulnerabilities (2 CVEs) — 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-2008-5262 CVE-2009-3994 Upstream summary: Multiple stack-based buffer overflows in the iGetHdrHeader function in src-IL/src/il_hdr.c in DevIL 1.7.4 allow context-dependent attackers to execute arbitrary code via a crafted Radiance […]

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Debian 12 — optipng — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — optipng — multiple vulnerabilities (10 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-5101 CVE-2009-0749 CVE-2015-7801 CVE-2015-7802 CVE-2016-2191 CVE-2016-3981 CVE-2016-3982 CVE-2017-1000229  +2 more Upstream summary: Buffer overflow in the BMP reader in OptiPNG 0.6 and 0.6.1 allows user-assisted attackers to execute […]

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Debian 13 — node-serve-index — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — node-serve-index — 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-2015-8856 Upstream summary: Cross-site scripting (XSS) vulnerability in the serve-index package before 1.6.3 for Node.js allows remote attackers to inject arbitrary web script or HTML via a crafted file […]

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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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