Security Hardening

Amazon Linux 2 — kernel-livepatch-5.10.184-174.730 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — kernel-livepatch-5.10.184-174.730 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • May 25, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2LIVEPATCH-2023-143 Related CVEs: CVE-2023-3609 CVE-2023-3776 Upstream summary: A use-after-free vulnerability in the Linux kernel's net/sched: cls_u32 component can be exploited to achieve local privilege escalation. If tcf_change_indev() fails, u32_set_parms() will […]

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Gentoo Linux — net-mail/ytnef — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — net-mail/ytnef — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • May 25, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202405-24 Related CVEs: CVE-2021-3403 CVE-2021-3404 Upstream summary: The TNEFSubjectHandler function in lib/ytnef.c allows remote attackers to cause a denial-of-service (and potentially code execution) due to a double free which can be triggered […]

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Rocky Linux 8 — perl-Term-ANSIColor — vulnerability — patch and remediation guide — diagnosis and fix on Rocky Linux 8

Rocky Linux 8 — perl-Term-ANSIColor — vulnerability — patch and remediation guide

  • May 25, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Rocky Linux 8 📖 ~4 min read  •  Source: Rocky Linux RXSA RLSA-2026:8096 Related CVEs: CVE-2025-40909 Upstream summary: Perl is a high-level programming language that is commonly used for system administration utilities and web programming. Security Fix(es): * perl: Perl threads have […]

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Arch Linux — helm — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — helm — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • May 25, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202106-52 Related CVEs: CVE-2021-32690 CVE-2021-21303 Upstream summary: Type: information disclosure. Status: Fixed. Affected: 3.6.0-1. Fixed in: 3.6.1-1. Group: AVG-2078. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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

Debian 11 — csound — multiple vulnerabilities (5 CVEs) — patch and remediation guide

  • May 25, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-5986 CVE-2012-0270 CVE-2012-2106 CVE-2012-2107 CVE-2012-2108 Upstream summary: Untrusted search path vulnerability in the (1) "VST plugin with Python scripting" and (2) "VST plugin for writing score generators in […]

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

Debian 13 — libmemcached — vulnerability — patch and remediation guide

  • May 25, 2026
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2023-27478 Upstream summary: libmemcached-awesome is an open source C/C++ client library and tools for the memcached server. `libmemcached` could return data for a previously requested key, if that previous […]

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

Debian 13 — pvpgn — multiple vulnerabilities (3 CVEs) — patch and remediation guide

  • May 25, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2004-2705 CVE-2005-2096 CVE-2008-5370 Upstream summary: Unspecified vulnerability in Player vs. Player Gaming Network (PvPGN) before 1.6.4 allows remote attackers to obtain attributes of arbitrary accounts, including the password […]

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

Debian 13 — bsdmainutils — vulnerability — patch and remediation guide

  • May 25, 2026
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2004-0793 Upstream summary: The calendar program in bsdmainutils 6.0 through 6.0.14 does not drop root privileges when executed with the -a flag, which allows attackers to execute arbitrary […]

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

Debian 13 — stellarium — vulnerability — patch and remediation guide

  • May 25, 2026
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2023-28371 Upstream summary: In Stellarium through 1.2, attackers can write to files that are typically unintended, such as ones with absolute pathnames or .. directory traversal. Table of contents […]

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

Debian 12 — linux-ftpd — multiple vulnerabilities (4 CVEs) — patch and remediation guide

  • May 25, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2006-5778 CVE-2006-6008 CVE-2006-7094 CVE-2008-4247 Upstream summary: ftpd in linux-ftpd 0.17, and possibly other versions, performs a chdir before setting the UID, which allows local users to bypass intended […]

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