January 2023 - Page 46 of 71

Ubuntu 20.04 — tmux — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — tmux — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 12 January 2023 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5843-1 Related CVEs: CVE-2022-47016 CVE-2020-27347 Upstream summary: It was discovered that tmux incorrectly handled certain inputs. An attacker could possibly use this issue to cause a denial of service. Table […]

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Ubuntu 14.04 — strongswan — multiple vulnerabilities (14 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — strongswan — multiple vulnerabilities (14 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 12 January 2023 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5651-2 Related CVEs: CVE-2022-40617 CVE-2021-45079 CVE-2021-41991 CVE-2018-17540 CVE-2018-10811 CVE-2018-16151 CVE-2018-16152 CVE-2018-5388  +6 more Upstream summary: USN-5651-1 fixed a vulnerability in strongSwan. This update provides the corresponding update for Ubuntu 14.04 […]

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Ubuntu 18.04 — wheel — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — wheel — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 12 January 2023 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5821-1 Related CVEs: CVE-2022-40898 Upstream summary: Sebastian Chnelik discovered that wheel incorrectly handled certain file names when validated against a regex expression. An attacker could possibly use this issue to […]

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Common Problems 121150

Kernel Panic After System Update

🔴 Critical   ⏱ 5–30 min  Last verified: 11 January 2023 Affected versions: Debian 10 📖 ~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 & […]

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

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

🟢 Low   ⏱ 5–15 min  Last verified: 11 January 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2003-0581 CVE-2003-0625 Upstream summary: X Fontserver for Truetype fonts (xfstt) 1.4 allows remote attackers to cause a denial of service and possibly execute arbitrary code via a (1) […]

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Common Problems 117106

Ubuntu 22.04 Black Screen After Resume from Suspend

🟡 Medium   ⏱ 5–30 min  Last verified: 11 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 […]

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

Debian 11 — mafft — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 11 January 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-4971 Upstream summary: mafft-homologs in mafft 6.240 allows local users to overwrite arbitrary files via a symlink attack on (1) /tmp/_vf#?????, (2) /tmp/_if#?????, (3) /tmp/_pf#?????, (4) /tmp/_af#?????, (5) […]

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Common Problems 111639

Windows Server 2022 — DNS policies fail to apply for split-brain resolution — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 11 January 2023 Affected versions: Windows Server 2022 📖 ~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 […]

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