Security Hardening

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

Debian 11 — rubygems — 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-2012-2125 CVE-2012-2126 CVE-2013-4287 CVE-2013-4363 CVE-2017-0899 CVE-2017-0900 CVE-2017-0901 CVE-2017-0902  +12 more Upstream summary: RubyGems before 1.8.23 can redirect HTTPS connections to HTTP, which makes it easier for remote attackers […]

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

Debian 10 — file — 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-2019-18218 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 12 — rubocop — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — rubocop — 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-2017-8418 Upstream summary: RuboCop 0.48.1 and earlier does not use /tmp in safe way, allowing local users to exploit this to tamper with cache files belonging to other […]

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Debian 11 — golang-github-docker-docker-credential-helpers — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — golang-github-docker-docker-credential-helpers — 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-2019-1020014 Upstream summary: docker-credential-helpers before 0.6.3 has a double free in the List functions. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

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

Debian 12 — ntirpc — 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-2017-8779 Upstream summary: rpcbind through 0.2.4, LIBTIRPC through 1.0.1 and 1.0.2-rc through 1.0.2-rc3, and NTIRPC through 1.4.3 do not consider the maximum RPC data size during memory allocation […]

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

Debian 12 — google-perftools — 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-2005-4895 CVE-2018-13420 Upstream summary: Multiple integer overflows in TCMalloc (tcmalloc.cc) in gperftools before 0.4 make it easier for context-dependent attackers to perform memory-related attacks such as buffer overflows […]

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

Debian 12 — archvsync — 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-2017-8805 Upstream summary: Debian ftpsync before 20171017 does not use the rsync –safe-links option, which allows remote attackers to conduct directory traversal attacks via a crafted upstream mirror. […]

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Debian 13 — node-es5-ext — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — node-es5-ext — 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-2024-27088 Upstream summary: es5-ext contains ECMAScript 5 extensions. Passing functions with very long names or complex default argument names into `function#copy` or `function#toStringTokens` may cause the script to stall. […]

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Debian 11 — php-horde-text-filter — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — php-horde-text-filter — 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-2016-5303 CVE-2021-26929 Upstream summary: Cross-site scripting (XSS) vulnerability in the Horde Text Filter API in Horde Groupware and Horde Groupware Webmail Edition before 5.2.16 allows remote attackers to […]

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Debian 13 — mruby — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — mruby — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-9527 CVE-2018-10191 CVE-2018-10199 CVE-2018-11743 CVE-2018-12248 CVE-2018-12249 CVE-2018-14337 CVE-2020-15866  +12 more Upstream summary: The mark_context_stack function in gc.c in mruby through 1.2.0 allows attackers to cause a denial of […]

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CHAT