October 2023 - Page 19 of 76

Windows Server 2019 — KB5022503 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2019

Windows Server 2019 — KB5022503 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2019 📖 ~4 min read  •  Source: Microsoft KB5022503 • MSRC update-guide entry Related CVEs: CVE-2023-21808 CVE-2023-21722 Affected components: Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019 Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Debian 12 — libbluray — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — libbluray — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 24 October 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-7810 Upstream summary: libbluray MountManager class has a time-of-check time-of-use (TOCTOU) race when expanding JAR files Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis […]

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Windows Server 2019 — KB5028185 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2019

Windows Server 2019 — KB5028185 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2019 📖 ~4 min read  •  Source: Microsoft KB5028185 • MSRC update-guide entry Related CVEs: CVE-2023-35315 CVE-2023-35365 CVE-2023-35366 CVE-2023-35367 CVE-2023-32057 CVE-2023-35297 CVE-2023-21756 CVE-2023-33166  +12 more Affected components: Windows Server 2019 (Server Core installation) Table of contents Symptom & Impact Environment […]

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Debian 12 — libseccomp — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — libseccomp — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 24 October 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-9893 Upstream summary: libseccomp before 2.4.0 did not correctly generate 64-bit syscall argument comparisons using the arithmetic operators (LT, GT, LE, GE), which might able to lead to […]

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Common Problems 117567

Ubuntu 20.04 LTS – snap refresh hangs and blocks package operations – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 24 October 2023 Affected versions: Ubuntu 20.04 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 […]

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NetBSD 9.4 — python21 — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — python21 — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Upstream summary: pkgsrc audit-packages flagged python21<2.1.3nb8 for vulnerability class 'remote-code-execution'. Reference: http://secunia.com/advisories/16914/ Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary […]

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Debian 12 — ioquake3 — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — ioquake3 — multiple vulnerabilities (12 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 24 October 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2006-2082 CVE-2006-2236 CVE-2006-2875 CVE-2006-3324 CVE-2006-3325 CVE-2011-1412 CVE-2011-2764 CVE-2011-3012  +4 more Upstream summary: Directory traversal vulnerability in Quake 3 engine, as used in products including Quake3 Arena, Return to […]

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Ubuntu 18.04 — screen — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — screen — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 24 October 2023 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6198-1 Related CVEs: CVE-2023-24626 CVE-2021-26937 Upstream summary: It was discovered that GNU Screen was not properly checking user identifiers before sending certain signals to target processes. If GNU Screen was […]

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Ubuntu 22.04 — swish-e — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — swish-e — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 24 October 2023 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8240-1 Related CVEs: CVE-2022-25236 CVE-2022-25235 Upstream summary: It was discovered that Expat, vendored in Swish-e incorrectly handled certain files. An attacker could possibly use this issue to cause a crash […]

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Alpine Linux 3.18 — keepalived — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — keepalived — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 2.2.7-r0 📖 ~4 min read  •  Source: Alpine secdb entry — keepalived 2.2.7-r0 Related CVEs: CVE-2021-44225 CVE-2018-19044 CVE-2018-19045 CVE-2018-19046 Upstream summary: Alpine community repository for vv3.18 ships keepalived 2.2.7-r0 which addresses CVE-2021-44225. Table of contents Symptom […]

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