Common Problems

Ubuntu 20.04 — stunnel4 — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — stunnel4 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 1 April 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6901-1 Related CVEs: CVE-2021-20230 Upstream summary: It was discovered that stunnel did not properly validate client certificates when configured to use both the redirect and verifyChain options. A remote attacker […]

Read more
Common Problems 120599

Debian 11 RAID Array Degraded Without Alerting

🔴 Critical   ⏱ 5–30 min  Last verified: 1 April 2022 Affected versions: Debian 11 📖 ~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 & […]

Read more
IBM AIX 7.3 — CVE-2010-4622 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.3

IBM AIX 7.3 — CVE-2010-4622 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 31 March 2022 Affected versions: IBM AIX 7.3 📖 ~4 min read  •  Source: NVD CVE-2010-4622, IBM Support Bulletin CVE: CVE-2010-4622 NVD summary: Directory traversal vulnerability in WebSEAL in IBM Tivoli Access Manager for e-business 6.1.1 before 6.1.1-TIV-AWS-FP0001 on AIX allows remote attackers to read arbitrary files […]

Read more
Oracle Linux 8 — libldb security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — libldb security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2022-7730)

🟡 Medium   ⏱ 10–30 min  Last verified: 31 March 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-7730 Related CVEs: CVE-2022-32746 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

Read more
FreeBSD 12 — py311-slixmpp — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py311-slixmpp — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 31 March 2022 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Slixmpp — Lack of SSL Certificate hostname validation in XMLStream Related CVEs: CVE-2022-45197 Upstream summary: NIST reports: Slixmpp before 1.8.3 lacks SSL Certificate hostname validation in XMLStream, allowing an attacker […]

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

Debian 11 — lintian — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 31 March 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2004-1000 CVE-2009-4013 CVE-2009-4014 CVE-2009-4015 CVE-2013-1429 CVE-2017-8829 Upstream summary: lintian 1.23 and earlier removes the working directory even if it was not created by lintian, which may allow local […]

Read more
AlmaLinux 8 — libmodulemd — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — libmodulemd — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALEA-2021:4405 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 […]

Read more
FreeBSD 12 — py37-WsgiDAV — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py37-WsgiDAV — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 31 March 2022 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-WsgiDAV — XSS vulnerability Related CVEs: CVE-2022-41905 Upstream summary: Implementations using this library with directory browsing enabled may be susceptible to Cross Site Scripting (XSS) attacks. Table of contents Symptom […]

Read more
Debian 11 — fex — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — fex — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 31 March 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2011-1409 CVE-2012-0869 CVE-2012-1293 CVE-2014-3875 CVE-2014-3876 CVE-2014-3877 CVE-2020-15591 Upstream summary: Frams's Fast File EXchange (F*EX, aka fex) 20100208, and possibly other versions before 20110610, allows remote attackers to bypass […]

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

Debian 11 — cecilia — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 31 March 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-1832 Upstream summary: lib/prefs.tcl in Cecilia 2.0.5 allows local users to overwrite arbitrary files via a symlink attack on the csvers temporary file. Table of contents Symptom & […]

Read more
CHAT