Linux

Common Problems 116555

Ubuntu 24.04 LTS – SSH key authentication denied – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 1 December 2024 Affected versions: Ubuntu 24.04 LTS 📖 ~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
Common Problems 116447

Ubuntu 24.04 LTS – apt HTTPS fails due to clock skew – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 1 December 2024 Affected versions: Ubuntu 24.04 LTS 📖 ~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
Debian 12 — t-coffee — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — t-coffee — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 1 December 2024 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-8621 Upstream summary: t-coffee before 11.00.8cbe486-2 allows local users to write to ~/.t_coffee globally. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

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

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

🟡 Medium   ⏱ 10–30 min  Last verified: 1 December 2024 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-40818 CVE-2021-45379 CVE-2022-27240 CVE-2022-29967 CVE-2023-49208 CVE-2024-25715 Upstream summary: scheme/webauthn.c in Glewlwyd SSO server through 2.5.3 has a buffer overflow during FIDO2 signature validation in webauthn registration. Table of […]

Read more
Debian 12 — accountsservice — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — accountsservice — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 1 December 2024 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2011-4406 CVE-2012-2737 CVE-2012-6655 CVE-2018-14036 Upstream summary: The Ubuntu AccountsService package before 0.6.14-1git1ubuntu1.1 does not properly drop privileges when changing language settings, which allows local users to modify arbitrary […]

Read more
Amazon Linux 2 — pcp — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — pcp — multiple vulnerabilities (3 CVEs) — 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 ALAS2-2024-2657 Related CVEs: CVE-2024-45770 CVE-2019-3695 CVE-2019-3696 Upstream summary: A vulnerability was found in Performance Co-Pilot (PCP). This flaw can only be exploited if an attacker has access to a compromised […]

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

Debian 11 — dante — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 1 December 2024 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2024-54662 Upstream summary: Dante 1.4.0 through 1.4.3 (fixed in 1.4.4) has incorrect access control for some sockd.conf configurations involving socksmethod. Table of contents Symptom & Impact Environment & […]

Read more
Alpine Linux 3.19 — darkhttpd — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux 3.19

Alpine Linux 3.19 — darkhttpd — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.19 / fixed in 1.14-r0 📖 ~4 min read  •  Source: Alpine secdb entry — darkhttpd 1.14-r0 Related CVEs: CVE-2020-25691 Upstream summary: Alpine main repository for vv3.19 ships darkhttpd 1.14-r0 which addresses CVE-2020-25691. Table of contents Symptom & Impact Environment […]

Read more
openSUSE Leap 15.5 — python311 — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.5

openSUSE Leap 15.5 — python311 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.5 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2023:3261-1 (see also SUSE bugzilla) Related CVEs: CVE-2023-41105 Upstream summary: An issue was discovered in Python 3.11 through 3.11.4. If a path containing '' bytes is passed to os.path.normpath(), the path […]

Read more
Ubuntu 20.04 — golang-1.21 — multiple vulnerabilities (16 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — golang-1.21 — multiple vulnerabilities (16 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 1 December 2024 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6886-1 Related CVEs: CVE-2023-45288 CVE-2023-45289 CVE-2023-45290 CVE-2024-24783 CVE-2024-24784 CVE-2024-24785 CVE-2024-24788 CVE-2024-24789  +8 more Upstream summary: It was discovered that the Go net/http module did not properly handle the requests when […]

Read more
CHAT