Security Hardening

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

Debian 11 — php-xajax — 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-2007-2739 CVE-2007-2740 Upstream summary: Cross-site scripting (XSS) vulnerability in xajax before 0.2.5 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors. Table of contents […]

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

Debian 12 — glslang — 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-2025-3010 Upstream summary: A vulnerability, which was classified as problematic, has been found in Khronos Group glslang 15.1.0. Affected by this issue is the function glslang::TIntermediate::isConversionAllowed of the […]

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

Debian 13 — perltidy — 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-2014-2277 CVE-2016-10374 Upstream summary: The make_temporary_filename function in perltidy 20120701-1 and earlier allows local users to obtain sensitive information or write to arbitrary files via a symlink attack, […]

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

Debian 11 — debian-goodies — 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-2007-3912 CVE-2023-27635 Upstream summary: checkrestart in debian-goodies before 0.34 allows local users to gain privileges via shell metacharacters in the name of the executable file for a running […]

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

Debian 11 — ghostwriter — 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-2022-39209 Upstream summary: cmark-gfm is GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C. In versions prior to 0.29.0.gfm.6 a polynomial time complexity […]

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

Debian 11 — libcrypt-saltedhash-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-2026-47372 CVE-2026-47373 Upstream summary: Crypt::SaltedHash versions through 0.09 for Perl generate insecure random values for salts. These versions use the built-in rand function, which is predictable and unsuitable […]

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Debian 13 — python-lupa — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — python-lupa — 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-2026-34444 Upstream summary: Lupa integrates the runtimes of Lua or LuaJIT2 into CPython. In 2.6 and earlier, attribute_filter is not consistently applied when attributes are accessed through built-in functions […]

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

Debian 11 — acpi-support — 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-2014-0484 CVE-2014-1419 Upstream summary: The Debian acpi-support package before 0.140-5+deb7u3 allows local users to gain privileges via vectors related to the "user's environment." Table of contents Symptom & […]

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

Debian 13 — backintime — multiple vulnerabilities (3 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-2009-3611 CVE-2017-16667 CVE-2017-7572 Upstream summary: common/snapshots.py in Back In Time (aka backintime) 0.9.26 changes certain permissions to 0777 before deleting the files in an old backup snapshot, which […]

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