Security Hardening

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

Debian 13 — fmtlib — 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-2018-1000052 Upstream summary: fmtlib version prior to version 4.1.0 (before commit 0555cea5fc0bf890afe0071a558e44625a34ba85) contains a Memory corruption (SIGSEGV), CWE-134 vulnerability in fmt::print() library function that can result in Denial of […]

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

Debian 11 — booth — 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-2022-2553 CVE-2024-3049 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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

Debian 13 — leptonlib — multiple vulnerabilities (13 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-2017-18196 CVE-2018-3836 CVE-2018-7186 CVE-2018-7247 CVE-2018-7440 CVE-2018-7441 CVE-2018-7442 CVE-2020-36277  +5 more Upstream summary: Leptonica 1.74.4 constructs unintended pathnames (containing duplicated path components) when operating on files in /tmp subdirectories, […]

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Debian 12 — dlt-daemon — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — dlt-daemon — multiple vulnerabilities (8 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-2020-29394 CVE-2020-36244 CVE-2021-29507 CVE-2022-31291 CVE-2022-39836 CVE-2022-39837 CVE-2023-26257 CVE-2023-36321 Upstream summary: A buffer overflow in the dlt_filter_load function in dlt_common.c from dlt-daemon through 2.18.5 (GENIVI Diagnostic Log and Trace) […]

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Debian 12 — libmarc-xml-perl — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — libmarc-xml-perl — 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-2014-1626 Upstream summary: XML External Entity (XXE) vulnerability in MARC::File::XML module before 1.0.2 for Perl, as used in Evergreen, Koha, perl4lib, and possibly other products, allows context-dependent attackers […]

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Debian 11 — mah-jong — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — mah-jong — multiple vulnerabilities (3 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-2003-0705 CVE-2003-0706 CVE-2004-0458 Upstream summary: Buffer overflow in mah-jong 1.5.6 and earlier allows remote attackers to execute arbitrary code. Table of contents Symptom & Impact Environment & Reproduction […]

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Debian 11 — golang-github-lucas-clemente-quic-go — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — golang-github-lucas-clemente-quic-go — multiple vulnerabilities (7 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-2022-30591 CVE-2023-49295 CVE-2024-22189 CVE-2024-53259 CVE-2025-29785 CVE-2025-59530 CVE-2025-64702 Upstream summary: quic-go through 0.27.0 allows remote attackers to cause a denial of service (CPU consumption) via a Slowloris variant in […]

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

Debian 13 — mosh — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-2385 Upstream summary: The terminal dispatcher in mosh before 1.2.1 allows remote authenticated users to cause a denial of service (long loop and CPU consumption) via an escape […]

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Debian 11 — libarchive-zip-perl — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libarchive-zip-perl — 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-2004-1096 CVE-2018-10860 Upstream summary: Archive::Zip Perl module before 1.14, when used by antivirus programs such as amavisd-new, allows remote attackers to bypass antivirus protection via a compressed file […]

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