Security Hardening

Debian 11 — icu — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — icu — multiple vulnerabilities (20 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-2007-4770 CVE-2007-4771 CVE-2008-1036 CVE-2009-0153 CVE-2011-4599 CVE-2013-0900 CVE-2013-1569 CVE-2013-2383  +12 more Upstream summary: libicu in International Components for Unicode (ICU) 3.8.1 and earlier attempts to process backreferences to the […]

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

Debian 11 — analog — 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-2002-1154 Upstream summary: anlgform.pl in Analog before 5.23 does not restrict access to the PROGRESSFREQ progress update command, which allows remote attackers to cause a denial of service […]

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

Debian 13 — okular — 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-2010-2575 CVE-2018-1000801 CVE-2020-9359 Upstream summary: Heap-based buffer overflow in the RLE decompression functionality in the TranscribePalmImageToJPEG function in generators/plucker/inplug/image.cpp in Okular in KDE SC 4.3.0 through 4.5.0 allows […]

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Debian 12 — tryton-proteus — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — tryton-proteus — multiple vulnerabilities (2 CVEs) — 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-2022-26661 CVE-2022-26662 Upstream summary: An XXE issue was discovered in Tryton Application Platform (Server) 5.x through 5.0.45, 6.x through 6.0.15, and 6.1.x and 6.2.x through 6.2.5, and Tryton […]

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

Debian 12 — dxflib — 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-2021-21897 Upstream summary: A code execution vulnerability exists in the DL_Dxf::handleLWPolylineData functionality of Ribbonsoft dxflib 3.17.0. A specially-crafted .dxf file can lead to a heap buffer overflow. An […]

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

Debian 11 — gfbgraph — 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-2021-39358 Upstream summary: In GNOME libgfbgraph through 0.2.4, gfbgraph-photo.c does not enable TLS certificate verification on the SoupSessionSync objects it creates, leaving users vulnerable to network MITM attacks. […]

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Debian 11 — ppc64-diag — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — ppc64-diag — 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-2014-4038 CVE-2014-4039 Upstream summary: ppc64-diag 2.6.1 allows local users to overwrite arbitrary files via a symlink attack related to (1) rtas_errd/diag_support.c and /tmp/get_dt_files, (2) scripts/ppc64_diag_mkrsrc and /tmp/diagSEsnap/snapH.tar.gz, or […]

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

Debian 12 — lazarus — 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-2008-5007 Upstream summary: create_lazarus_export_tgz.sh in lazarus 0.9.24 allows local users to overwrite or delete arbitrary files via a symlink attack on a (1) /tmp/lazarus.tgz temporary file or a […]

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Debian 13 — libksba — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — libksba — multiple vulnerabilities (10 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-2006-5111 CVE-2014-9087 CVE-2016-4353 CVE-2016-4354 CVE-2016-4355 CVE-2016-4356 CVE-2016-4574 CVE-2016-4579  +2 more Upstream summary: The libksba library 0.9.12 and possibly other versions, as used by gpgsm in the newpg package […]

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