Common Problems

openSUSE Tumbleweed — ruby2.7-rubygem-kramdown — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — ruby2.7-rubygem-kramdown — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • December 16, 2021
  • Linux
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🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2025:15119-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-28834 CVE-2020-14001 Upstream summary: Kramdown before 2.3.1 does not restrict Rouge formatters to the Rouge::Formatters namespace, and thus arbitrary classes can be instantiated. Table of […]

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Debian 10 — debian-edu-config — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — debian-edu-config — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • December 16, 2021
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 16 December 2021 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-3467 CVE-2021-20001 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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FreeBSD 13 — libcaca — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — libcaca — multiple vulnerabilities (8 CVEs) — patch and remediation guide

  • December 15, 2021
  • BSD
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🟡 Medium   ⏱ 10–30 min  Last verified: 15 December 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: libcaca — Multiple vulnerabilities Related CVEs: CVE-2018-20545 CVE-2018-20546 CVE-2018-20547 CVE-2018-20548 CVE-2018-20549 CVE-2021-30498 CVE-2021-30499 CVE-2021-3410 Upstream summary: Sam Hocevar reports: Multiple memory leaks and invalid memory accesses: CVE-2018-20545: Illegal WRITE memory […]

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Oracle Linux 8 — Installation and Upgrade Issues — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Installation and Upgrade Issues (OL8-ISSUES-INSTALL)

  • December 15, 2021
  • Linux
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🟠 High   ⏱ 5–30 min  Last verified: 15 December 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: Oracle Bug OLRNT-ol8-issues-install 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 […]

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FreeBSD 13 — KeePassX — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — KeePassX — vulnerability — patch and remediation guide

  • December 15, 2021
  • BSD
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🟢 Low   ⏱ 5–15 min  Last verified: 15 December 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: KeePassX — information disclosure Related CVEs: CVE-2015-8378 Upstream summary: Yves-Alexis Perez reports: Starting an export (using File / Export to / KeepassX XML file) and cancelling it leads to KeepassX […]

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FreeBSD 13 — lzo — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — lzo — vulnerability — patch and remediation guide

  • December 15, 2021
  • BSD
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🟢 Low   ⏱ 5–15 min  Last verified: 15 December 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: LZO — potential buffer overrun when processing malicious input data Related CVEs: CVE-2014-4608 Upstream summary: Markus Franz Xaver Johannes Oberhumer reports, in the package's NEWS file: Fixed a potential integer […]

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AlmaLinux 8 — libgweather — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — libgweather — vulnerability — patch and remediation guide

  • December 15, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2021:4196 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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

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

  • December 15, 2021
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 15 December 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-1686 CVE-2020-23903 Upstream summary: Array index vulnerability in Speex 1.1.12 and earlier, as used in libfishsound 0.9.0 and earlier, including Illiminable DirectShow Filters and Annodex Plugins for Firefox, […]

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