Security Hardening

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

Debian 11 — distcc — 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-2004-0601 CVE-2004-2687 Upstream summary: distcc before 2.16, when running on 64-bit platforms, does not interpret IP-based access control rules correctly, which could allow remote attackers to bypass intended […]

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

Debian 12 — ipcalc — 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-2006-3848 Upstream summary: Cross-site scripting (XSS) vulnerability in CGI wrapper for IP Calculator (IPCalc) 0.40 allows remote attackers to inject arbitrary web script or HTML via the URI […]

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

Debian 11 — maildirsync — 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-2008-5150 Upstream summary: sample.sh in maildirsync 1.1 allows local users to append data to arbitrary files via a symlink attack on a /tmp/maildirsync-*.#####.log temporary file. Table of contents […]

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Debian 12 — junit4 — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — junit4 — 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-2020-15250 Upstream summary: In JUnit4 from version 4.7 and before 4.13.1, the test rule TemporaryFolder contains a local information disclosure vulnerability. On Unix like systems, the system's temporary […]

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Debian 13 — iniparser — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — iniparser — multiple vulnerabilities (2 CVEs) — 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-2023-33461 CVE-2025-0633 Upstream summary: iniparser v4.1 is vulnerable to NULL Pointer Dereference in function iniparser_getlongint which misses check NULL for function iniparser_getstring's return. Table of contents Symptom & […]

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Debian 13 — xfce4-settings — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — xfce4-settings — 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-2022-45062 Upstream summary: In Xfce xfce4-settings before 4.16.4 and 4.17.x before 4.17.1, there is an argument injection vulnerability in xfce4-mime-helper. Table of contents Symptom & Impact Environment & Reproduction […]

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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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