Fix Prevention

Debian 11 — lldpd — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — lldpd — multiple vulnerabilities (6 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-2015-8011 CVE-2015-8012 CVE-2020-27827 CVE-2021-43612 CVE-2023-41910 CVE-2026-46433 Upstream summary: Buffer overflow in the lldp_decode function in daemon/protocols/lldp.c in lldpd before 0.8.0 allows remote attackers to cause a denial of […]

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Debian 11 — libxml-security-java — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libxml-security-java — 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-2013-2172 CVE-2013-4517 CVE-2019-12400 CVE-2021-40690 CVE-2023-44483 Upstream summary: jcp/xml/dsig/internal/dom/DOMCanonicalizationMethod.java in Apache Santuario XML Security for Java 1.4.x before 1.4.8 and 1.5.x before 1.5.5 allows context-dependent attackers to spoof an […]

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

Debian 11 — knack — 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-2025-54363 CVE-2025-54364 Upstream summary: Microsoft Knack 0.12.0 allows Regular expression Denial of Service (ReDoS) in the knack.introspection module. extract_full_summary_from_signature employs an inefficient regular expression pattern: "\s(:param)\s+(.+?)\s:(.*)" that is […]

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

Debian 12 — traceroute — 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-2023-46316 Upstream summary: In buc Traceroute 2.0.12 through 2.1.2 before 2.1.3, the wrapper scripts do not properly parse command lines. Table of contents Symptom & Impact Environment & […]

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

Debian 13 — python-gnupg — 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-2013-7323 CVE-2014-1927 CVE-2014-1928 CVE-2014-1929 CVE-2019-6690 Upstream summary: python-gnupg before 0.3.5 allows context-dependent attackers to execute arbitrary commands via shell metacharacters in unspecified vectors. Table of contents Symptom & […]

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

Debian 11 — libdnf — 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-2021-3445 Upstream summary: A flaw was found in libdnf's signature verification functionality in versions before 0.60.1. This flaw allows an attacker to achieve code execution if they can […]

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Debian 13 — rust-rgb — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — rust-rgb — 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-2020-25016 Upstream summary: A safety violation was discovered in the rgb crate before 0.8.20 for Rust, leading to (for example) dereferencing of arbitrary pointers or disclosure of uninitialized memory. […]

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

Debian 11 — ziproxy — 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-2009-0804 CVE-2010-1513 CVE-2010-2350 Upstream summary: Ziproxy 2.6.0, when transparent interception mode is enabled, uses the HTTP Host header to determine the remote endpoint, which allows remote attackers to […]

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Debian 12 — firejail — multiple vulnerabilities (18 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — firejail — multiple vulnerabilities (18 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-10117 CVE-2016-10118 CVE-2016-10119 CVE-2016-10120 CVE-2016-10121 CVE-2016-10122 CVE-2016-10123 CVE-2016-9016  +10 more Upstream summary: Firejail does not restrict access to –tmpfs, which allows local users to gain privileges, as demonstrated […]

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