Linux

AlmaLinux 8 — memtest86+ — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — memtest86+ — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2021:1599 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Debian 11 — crossfire-maps — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — crossfire-maps — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 September 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-4908 Upstream summary: maps/Info/combine.pl in CrossFire crossfire-maps 1.11.0 allows local users to overwrite arbitrary files via a symlink attack on a temporary file. Table of contents Symptom & […]

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

Debian 11 — mksh — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 September 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-1845 Upstream summary: The Korn shell (aka mksh) before R33d on MirOS (aka MirBSD) does not flush the tty's I/O when invoking mksh in a new terminal, which […]

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

Debian 11 — gbatnav — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 September 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2003-0407 Upstream summary: Buffer overflow in gbnserver for Gnome Batalla Naval 1.0.4 allows remote attackers to execute arbitrary code via a long connection string. Table of contents Symptom […]

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

Debian 11 — lhasa — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 September 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-2347 Upstream summary: Integer underflow in the decode_level3_header function in lib/lha_file_header.c in Lhasa before 0.3.1 allows remote attackers to execute arbitrary code via a crafted archive. Table of […]

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

Debian 11 — libfs — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 September 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-1996 Upstream summary: X.org libFS 1.0.4 and earlier allows X servers to trigger allocation of insufficient memory and a buffer overflow via vectors related to an unexpected sign […]

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SLES 15 — libyang1 — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — libyang1 — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 29 September 2021 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2022:3245-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-28902 CVE-2021-28903 CVE-2021-28904 CVE-2021-28906 CVE-2021-28905 Upstream summary: In function read_yin_container() in libyang <= v1.0.225, it doesn't check whether the value of retval->ext[r] is NULL. In […]

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Arch Linux — racket — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — racket — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202107-39 Related CVEs: CVE-2021-32773 Upstream summary: Type: sandbox escape. Status: Fixed. Affected: 8.1-1. Fixed in: 8.2-1. Group: AVG-2175. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis […]

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Oracle Linux 8 — ULN registration wizard not displayed on first boot after an installation — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — ULN registration wizard not displayed on first boot after an installation

🟠 High   ⏱ 5–30 min  Last verified: 28 September 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: Oracle Bug 29939974 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan […]

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