Package Management

Ubuntu 22.04 — cairo — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — cairo — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 15 September 2023 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8140-1 Related CVEs: CVE-2020-35492 CVE-2017-9814 CVE-2019-6462 CVE-2019-6461 Upstream summary: Alberto Garcia, Francisco Oca and Suleman Ali discovered that Cairo did not properly manage memory. An attacker could possibly use this […]

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Alpine Linux 3.18 — perl-email-address — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — perl-email-address — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 1.912-r0 📖 ~4 min read  •  Source: Alpine secdb entry — perl-email-address 1.912-r0 Related CVEs: CVE-2018-12558 Upstream summary: Alpine main repository for vv3.18 ships perl-email-address 1.912-r0 which addresses CVE-2018-12558. Table of contents Symptom & Impact Environment […]

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Oracle Linux 8 — python3 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — python3 — vulnerability — patch and remediation guide (ELSA-2023-5997)

🟠 High   ⏱ 15–60 min  Last verified: 15 September 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-5997 Related CVEs: CVE-2023-40217 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 — zlib — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — zlib — vulnerability — patch and remediation guide (ELSA-2022-7314)

🟡 Medium   ⏱ 10–30 min  Last verified: 15 September 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-7314 Related CVEs: CVE-2022-37434 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 — libreswan — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — libreswan — vulnerability — patch and remediation guide (ELSA-2023-7052)

🟡 Medium   ⏱ 10–30 min  Last verified: 15 September 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-7052 Related CVEs: CVE-2023-38712 CVE-2023-38710 CVE-2023-38711 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]

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openSUSE Leap 15.5 — ftdiff — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.5

openSUSE Leap 15.5 — ftdiff — 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-2023:2776-1 (see also SUSE bugzilla) Related CVEs: CVE-2023-2004 Upstream summary: ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Reason: This candidate was withdrawn by its CNA. Further investigation […]

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

Oracle Linux 9 — bluez — vulnerability — patch and remediation guide (ELSA-2024-9413)

🟡 Medium   ⏱ 10–30 min  Last verified: 15 September 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-9413 Related CVEs: CVE-2023-45866 CVE-2023-27349 CVE-2023-50230 CVE-2023-50229 CVE-2023-51592 CVE-2023-51589 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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

Oracle Linux 9 — firefox — vulnerability — patch and remediation guide (ELSA-2022-4765)

🔴 Critical   ⏱ 15–90 min  Last verified: 15 September 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-4765 Related CVEs: CVE-2022-1529 CVE-2022-1802 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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How to Upgrade from Debian 11 to Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Upgrade from Debian 11 to Debian 12

Introduction How to Upgrade from Debian 11 to Debian 12 is a fundamental operation for any administrator maintaining a Debian 12 Bookworm server. Debian 12 Bookworm ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 12. […]

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NetBSD 9.4 — ap-auth-ldap — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — ap-auth-ldap — 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 ap-auth-ldap<1.6.1 for vulnerability class 'arbitrary-code-execution'. Reference: http://secunia.com/advisories/18382/ Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary […]

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