Common Problems

Debian 11 — libssh2 — multiple vulnerabilities (15 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libssh2 — multiple vulnerabilities (15 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 23 November 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-1782 CVE-2016-0787 CVE-2019-13115 CVE-2019-17498 CVE-2019-3855 CVE-2019-3856 CVE-2019-3857 CVE-2019-3858  +7 more Upstream summary: The kex_agree_methods function in libssh2 before 1.5.0 allows remote servers to cause a denial of service […]

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Common Problems 111747

Windows Server 2022 — Firewall drop logging disabled, troubleshooting is blind — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 23 November 2022 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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Debian 11 — bzrtp — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — bzrtp — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 23 November 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-6271 Upstream summary: The Bzrtp library (aka libbzrtp) 1.0.x before 1.0.4 allows man-in-the-middle attackers to conduct spoofing attacks by leveraging a missing HVI check on DHPart2 packet reception. […]

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Debian 11 — apt-xapian-index — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — apt-xapian-index — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 23 November 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-1064 Upstream summary: apt-xapian-index before 0.45ubuntu2.1, 0.44ubuntu7.1, and 0.44ubuntu5.1 does not properly use D-Bus for communication with a polkit authority, which allows local users to bypass intended access […]

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Ubuntu 16.04 — gst-plugins-good1.0 — multiple vulnerabilities (15 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — gst-plugins-good1.0 — multiple vulnerabilities (15 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 23 November 2022 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5555-1 Related CVEs: CVE-2022-1920 CVE-2022-1921 CVE-2022-1922 CVE-2022-1923 CVE-2022-1924 CVE-2022-1925 CVE-2022-2122 CVE-2021-3497  +7 more Upstream summary: It was discovered that GStreamer Good Plugins incorrectly handled certain files. An attacker could possibly […]

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Oracle Linux 8 — Unbreakable Enterprise kernel-container — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel-container — vulnerability — patch and remediation guide (ELSA-2022-9029)

🟠 High   ⏱ 15–60 min  Last verified: 23 November 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-9029 Related CVEs: CVE-2022-0185 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Oracle Linux 9 — pesign — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — pesign — vulnerability — patch and remediation guide (ELSA-2023-1067)

🟠 High   ⏱ 15–60 min  Last verified: 23 November 2022 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-1067 Related CVEs: CVE-2022-3560 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2022-9365)

🟠 High   ⏱ 15–60 min  Last verified: 23 November 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-9365 Related CVEs: CVE-2022-27666 CVE-2020-24504 CVE-2021-45095 CVE-2022-1158 CVE-2020-24502 CVE-2020-24503 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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SLES 12 — php72 — multiple vulnerabilities (15 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — php72 — multiple vulnerabilities (15 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 23 November 2022 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2022:2161-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-31625 CVE-2022-31626 CVE-2020-36193 CVE-2020-7069 CVE-2021-21702 CVE-2021-21704 CVE-2022-31628 CVE-2022-31629  +7 more Upstream summary: In PHP versions 7.4.x below 7.4.30, 8.0.x below 8.0.20, and 8.1.x below 8.1.7, […]

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Common Problems 117057

Ubuntu 22.04 sudo Fails in Non-Interactive Jobs with askpass Errors

🟡 Medium   ⏱ 5–30 min  Last verified: 22 November 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 & Cross-Refs References & Further […]

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