Security Hardening

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

Debian 12 — ocaml — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 27 July 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-0839 CVE-2015-8869 CVE-2017-9779 CVE-2018-9838 CVE-2026-28364 CVE-2026-34353 Upstream summary: OCaml 3.12.1 and earlier computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers […]

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

Debian 13 — pyyaml — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 27 July 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-9130 CVE-2017-18342 CVE-2019-20477 CVE-2020-14343 CVE-2020-1747 Upstream summary: scanner.c in LibYAML 0.1.5 and 0.1.6, as used in the YAML-LibYAML (aka YAML-XS) module for Perl, allows context-dependent attackers to cause […]

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openSUSE Tumbleweed — mupdf — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — mupdf — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2016-10132 CVE-2016-10141 CVE-2025-55780 CVE-2026-25556 CVE-2016-8729 CVE-2017-17858 CVE-2017-5627 CVE-2017-5628  +12 more Upstream summary: regexp.c in Artifex Software, Inc. MuJS allows attackers to cause a denial of […]

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

Debian 11 — node-immutable — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 July 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2026-29063 Upstream summary: Immutable.js provides many Persistent Immutable data structures. Prior to versions 3.8.3, 4.3.7, and 5.1.5, Prototype Pollution is possible in immutable via the mergeDeep(), mergeDeepWith(), merge(), […]

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Debian 13 — cups-pk-helper — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — cups-pk-helper — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 July 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-4510 Upstream summary: cups-pk-helper before 0.2.3 does not properly wrap the (1) cupsGetFile and (2) cupsPutFile function calls, which allows user-assisted remote attackers to read or overwrite sensitive […]

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Debian 13 — as31 — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — as31 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 July 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-0808 Upstream summary: as31 2.3.1-4 does not seed the random number generator and generates predictable temporary file names, which makes it easier for local users to create or […]

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openSUSE Leap 15.6 — openCryptoki — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.6

openSUSE Leap 15.6 — openCryptoki — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.6 📖 ~4 min read  •  Source: SUSE advisory RHSA-2026:4717 (see also SUSE bugzilla) Related CVEs: CVE-2026-23893 Upstream summary: openCryptoki is a PKCS#11 library and provides tooling for Linux and AIX. Versions 2.3.2 and above are vulnerable to symlink-following when […]

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Debian 13 — rnp — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — rnp — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 27 July 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-33589 CVE-2023-29479 CVE-2023-29480 Upstream summary: Ribose RNP before 0.15.1 does not implement a required step in a cryptographic algorithm, resulting in weaker encryption than on the tin of […]

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Ubuntu 24.04 — python-tornado — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — python-tornado — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 27 July 2026 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8198-1 Related CVEs: CVE-2026-31958 CVE-2026-35536 CVE-2025-67724 CVE-2025-67725 CVE-2025-67726 CVE-2025-47287 CVE-2023-28370 CVE-2024-52804 Upstream summary: It was discovered that Tornado incorrectly handled parsing of large multipart request bodies. An attacker could possibly […]

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Debian 13 — soundtouch — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — soundtouch — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 27 July 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-9258 CVE-2017-9259 CVE-2017-9260 CVE-2018-1000223 CVE-2018-14044 CVE-2018-14045 CVE-2018-17096 CVE-2018-17097  +1 more Upstream summary: The TDStretch::processSamples function in source/SoundTouch/TDStretch.cpp in SoundTouch 1.9.2 allows remote attackers to cause a denial of […]

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