Common Problems

AlmaLinux 9 — apr — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 9

AlmaLinux 9 — apr — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 9 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2023:7711 Related CVEs: CVE-2022-24963 Upstream summary: The Apache Portable Runtime (APR) is a portability library used by the Apache HTTP Server and other projects. It provides a free library of C data […]

Read more
Common Problems 116891

Ubuntu 22.04 LTS Stuck at Black Screen After Kernel Update

🟡 Medium   ⏱ 5–30 min  Last verified: 23 January 2023 📖 ~1 min read 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 Prevention & Hardening Related Errors & Cross-Refs References & Further […]

Read more
Debian 11 — xerces-c — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — xerces-c — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 23 January 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-1885 CVE-2012-0880 CVE-2015-0252 CVE-2016-0729 CVE-2016-2099 CVE-2016-4463 CVE-2017-12627 CVE-2018-1311  +1 more Upstream summary: Stack consumption vulnerability in validators/DTD/DTDScanner.cpp in Apache Xerces C++ 2.7.0 and 2.8.0 allows context-dependent attackers to […]

Read more
Debian 11 — lprng — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — lprng — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 23 January 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2003-0136 Upstream summary: psbanner in the LPRng package allows local users to overwrite arbitrary files via a symbolic link attack on the /tmp/before file. Table of contents Symptom […]

Read more
Alpine Linux edge — libksba — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — libksba — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 1.6.3-r0 📖 ~4 min read  •  Source: Alpine secdb entry — libksba 1.6.3-r0 Related CVEs: CVE-2022-47629 CVE-2022-3515 Upstream summary: Alpine main repository for vedge ships libksba 1.6.3-r0 which addresses CVE-2022-47629. Table of contents Symptom & Impact […]

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

Debian 11 — opendkim — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 23 January 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-35766 CVE-2022-48521 Upstream summary: The test suite in libopendkim in OpenDKIM through 2.10.3 allows local users to gain privileges via a symlink attack against the /tmp/testkeys file (related […]

Read more
Debian 11 — smarty3 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — smarty3 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 23 January 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-5052 CVE-2009-5053 CVE-2009-5054 CVE-2010-4722 CVE-2010-4723 CVE-2010-4724 CVE-2010-4725 CVE-2010-4726  +12 more Upstream summary: Multiple unspecified vulnerabilities in Smarty before 3.0.0 beta 6 have unknown impact and attack vectors. Table […]

Read more
Debian 11 — golang-github-blevesearch-bleve — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — golang-github-blevesearch-bleve — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 23 January 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2022-31022 Upstream summary: Bleve is a text indexing library for go. Bleve includes HTTP utilities under bleve/http package, that are used by its sample application. These HTTP methods […]

Read more
Ubuntu 22.04 — rar — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — rar — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 23 January 2023 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7349-1 Related CVEs: CVE-2022-30333 CVE-2023-40477 Upstream summary: It was discovered that RAR incorrectly handled certain paths. If a user or automated system were tricked into extracting a specially crafted RAR […]

Read more
Amazon Linux 2 — re2c — vulnerability — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — re2c — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2023-2344 Related CVEs: CVE-2022-23901 Upstream summary: A stack overflow re2c 2.2 exists due to infinite recursion issues in src/dfa/dead_rules.cc. (CVE-2022-23901) Table of contents Symptom & Impact Environment & Reproduction Root […]

Read more
CHAT