Package Management

Ubuntu 20.04 — perl — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — perl — multiple vulnerabilities (7 CVEs) — patch and remediation guide

  • September 18, 2023
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 18 September 2023 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6517-1 Related CVEs: CVE-2022-48522 CVE-2023-47038 CVE-2023-31484 CVE-2020-16156 CVE-2020-10543 CVE-2020-10878 CVE-2020-12723 Upstream summary: It was discovered that Perl incorrectly handled printing certain warning messages. An attacker could possibly use this issue […]

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

NetBSD 9.4 — libmimedir — vulnerability — patch and remediation guide

  • September 18, 2023
  • BSD
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2015-3205 Upstream summary: pkgsrc audit-packages flagged libmimedir-[0-9]* for vulnerability class 'arbitrary-code-execution'. Reference: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-3205 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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Oracle Linux 8 — iperf3 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — iperf3 — vulnerability — patch and remediation guide (ELSA-2023-4570)

  • September 18, 2023
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 18 September 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-4570 Related CVEs: CVE-2023-38403 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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Alpine Linux 3.18 — pcmanfm — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — pcmanfm — vulnerability — patch and remediation guide

  • September 18, 2023
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 1.2.5-r1 📖 ~4 min read  •  Source: Alpine secdb entry — pcmanfm 1.2.5-r1 Related CVEs: CVE-2017-8934 Upstream summary: Alpine community repository for vv3.18 ships pcmanfm 1.2.5-r1 which addresses CVE-2017-8934. Table of contents Symptom & Impact Environment […]

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

Oracle Linux 8 — libwebp — vulnerability — patch and remediation guide (ELSA-2023-2076)

  • September 18, 2023
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 18 September 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-2076 Related CVEs: CVE-2023-1999 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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IBM AIX 7.1 — CVE-2023-33850 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.1

IBM AIX 7.1 — CVE-2023-33850 — vulnerability — patch and remediation guide

🟠 High   ⏱ 30–90 min  Last verified: 18 September 2023 Affected versions: IBM AIX 7.1 📖 ~4 min read  •  Source: NVD CVE-2023-33850, IBM Support Bulletin CVE: CVE-2023-33850 NVD summary: IBM GSKit-Crypto could allow a remote attacker to obtain sensitive information, caused by a timing-based side channel in the RSA Decryption implementation. By sending […]

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NetBSD 9.4 — gitea — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — gitea — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • September 18, 2023
  • BSD
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2019-11229 CVE-2020-14144 CVE-2021-45327 CVE-2018-15192 CVE-2019-11228 CVE-2019-11576 CVE-2019-1010314 CVE-2019-1010261  +12 more Upstream summary: pkgsrc audit-packages flagged gitea<1.8.0 for vulnerability class 'remote-code-execution'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2019-11229 Table of contents Symptom & Impact Environment […]

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How to Install Nginx on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Install Nginx on Debian 12

  • September 18, 2023
  • Linux
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Introduction This guide explains how to Install Nginx on Debian 12 on Debian 12 Bookworm. Debian Bookworm uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 12 install with the standard repositories […]

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Alpine Linux 3.18 — libvncserver — multiple vulnerabilities (16 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — libvncserver — multiple vulnerabilities (16 CVEs) — patch and remediation guide

  • September 18, 2023
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 0.9.13-r5 📖 ~4 min read  •  Source: Alpine secdb entry — libvncserver 0.9.13-r5 Related CVEs: CVE-2020-29260 CVE-2019-20839 CVE-2019-20840 CVE-2020-14397 CVE-2020-14399 CVE-2020-14400 CVE-2020-14401 CVE-2020-14402  +8 more Upstream summary: Alpine community repository for vv3.18 ships libvncserver 0.9.13-r5 which […]

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Oracle Linux 9 — xorg-x11-server — security and stability fixes — required update — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — xorg-x11-server — security and stability fixes — required update (ELSA-2022-8221)

  • September 17, 2023
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 17 September 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-8221 Related CVEs: CVE-2022-2319 CVE-2022-2320 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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