Security Hardening

Debian 12 — jsoup — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — jsoup — multiple vulnerabilities (3 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-2015-6748 CVE-2021-37714 CVE-2022-36033 Upstream summary: Cross-site scripting (XSS) vulnerability in jsoup before 1.8.3. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step […]

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Debian 12 — llvm-toolchain-15 — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — llvm-toolchain-15 — 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-2023-26924 CVE-2023-29932 CVE-2023-29933 CVE-2023-29934 CVE-2023-29935 CVE-2023-29939 CVE-2023-29941 CVE-2023-29942  +2 more Upstream summary: LLVM a0dab4950 has a segmentation fault in mlir::outlineSingleBlockRegion. NOTE: third parties dispute this because the LLVM […]

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Debian 13 — git-annex — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — git-annex — multiple vulnerabilities (4 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-2014-6274 CVE-2017-12976 CVE-2018-10857 CVE-2018-10859 Upstream summary: git-annex had a bug in the S3 and Glacier remotes where if embedcreds=yes was set, and the remote used encryption=pubkey or encryption=hybrid, […]

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Debian 9 — php-pear — vulnerability — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — php-pear — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 9 (stretch) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2018-1000888 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 11 — duo-unix — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — duo-unix — 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-2020-12135 Upstream summary: bson before 0.8 incorrectly uses int rather than size_t for many variables, parameters, and return values. In particular, the bson_ensure_space() parameter bytesNeeded could have an […]

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Debian 11 — fis-gtm — multiple vulnerabilities (19 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — fis-gtm — multiple vulnerabilities (19 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-2021-44492 CVE-2021-44493 CVE-2021-44494 CVE-2021-44495 CVE-2021-44496 CVE-2021-44497 CVE-2021-44498 CVE-2021-44499  +11 more Upstream summary: An issue was discovered in YottaDB through r1.32 and V7.0-000 and FIS GT.M through V7.0-000. Using […]

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Debian 11 — requests — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — requests — multiple vulnerabilities (8 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-2014-1829 CVE-2014-1830 CVE-2015-2296 CVE-2018-18074 CVE-2023-32681 CVE-2024-35195 CVE-2024-47081 CVE-2026-25645 Upstream summary: Requests (aka python-requests) before 2.3.0 allows remote servers to obtain a netrc password by reading the Authorization header […]

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

Debian 11 — python-bottle — 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-2014-3137 CVE-2016-9964 CVE-2020-28473 CVE-2022-31799 Upstream summary: Bottle 0.10.x before 0.10.12, 0.11.x before 0.11.7, and 0.12.x before 0.12.6 does not properly limit content types, which allows remote attackers to […]

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

Debian 11 — netperf — 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-2007-1444 Upstream summary: netserver in netperf 2.4.3 allows local users to overwrite arbitrary files via a symlink attack on /tmp/netperf.debug. Table of contents Symptom & Impact Environment & […]

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