Security Hardening

Debian 11 — x11-apps — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — x11-apps — 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-2011-2504 Upstream summary: Untrusted search path vulnerability in x11perfcomp in XFree86 x11perf before 1.5.4 allows local users to gain privileges via unspecified Trojan horse code in the current […]

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Debian 11 — slic3r-prusa — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — slic3r-prusa — multiple vulnerabilities (5 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-2020-28594 CVE-2020-28595 CVE-2020-28596 CVE-2020-28598 CVE-2023-47268 Upstream summary: A use-after-free vulnerability exists in the _3MF_Importer::_handle_end_model() functionality of Prusa Research PrusaSlicer 2.2.0 and Master (commit 4b040b856). A specially crafted 3MF […]

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Debian 12 — golang-gogoprotobuf — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — golang-gogoprotobuf — 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-2021-3121 Upstream summary: An issue was discovered in GoGo Protobuf before 1.3.2. plugin/unmarshal/unmarshal.go lacks certain index validation, aka the "skippy peanut butter" issue. Table of contents Symptom & […]

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Debian 11 — libcgi-application-perl — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libcgi-application-perl — 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-2013-7329 Upstream summary: The CGI::Application module before 4.50_50 and 4.50_51 for Perl, when run modes are not specified, allows remote attackers to obtain sensitive information (web queries and […]

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Debian 13 — rust-xcb — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — rust-xcb — multiple vulnerabilities (5 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-2020-36205 CVE-2021-26955 CVE-2021-26956 CVE-2021-26957 CVE-2021-26958 Upstream summary: An issue was discovered in the xcb crate through 2020-12-10 for Rust. base::Error does not have soundness. Because of the public […]

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Debian 12 — plexus-utils2 — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — plexus-utils2 — multiple vulnerabilities (4 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-2017-1000487 CVE-2022-4244 CVE-2022-4245 CVE-2025-67030 Upstream summary: Plexus-utils before 3.0.16 is vulnerable to command injection because it does not correctly process the contents of double quoted strings. Table of […]

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

Debian 13 — gnumail — 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-2007-1269 Upstream summary: GNUMail 1.1.2 and earlier does not properly use the –status-fd argument when invoking GnuPG, which prevents GNUMail from visually distinguishing between signed and unsigned portions […]

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Debian 11 — node-sshpk — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — node-sshpk — 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-2018-3737 Upstream summary: sshpk is vulnerable to ReDoS when parsing crafted invalid public keys. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

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Debian 13 — node-kind-of — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — node-kind-of — 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-2019-20149 Upstream summary: ctorName in index.js in kind-of v6.0.2 allows external user input to overwrite certain internal attributes via a conflicting name, as demonstrated by 'constructor': {'name':'Symbol'}. Hence, a […]

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