Linux

openSUSE Tumbleweed — ruby3.1 — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — ruby3.1 — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2025:14621-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-28738 CVE-2021-33621 CVE-2023-28755 CVE-2022-28739 Upstream summary: A double free was found in the Regexp compiler in Ruby 3.x before 3.0.4 and 3.1.x before 3.1.2. If […]

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SLES 15 — libbpf1 — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — libbpf1 — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 14 February 2023 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2021-45940 CVE-2021-45941 CVE-2022-3533 Upstream summary: libbpf 0.6.0 and 0.6.1 has a heap-based buffer overflow (4 bytes) in __bpf_object__open (called from bpf_object__open_mem and bpf-object-fuzzer.c). Table of […]

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Oracle Linux 8 — nodejs:18 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — nodejs:18 — vulnerability — patch and remediation guide (ELSA-2022-7821)

🟠 High   ⏱ 15–60 min  Last verified: 14 February 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-7821 Related CVEs: CVE-2022-35256 CVE-2022-35255 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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Oracle Linux 9 — avahi — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — avahi — vulnerability — patch and remediation guide (ELSA-2023-6707)

🟡 Medium   ⏱ 10–30 min  Last verified: 14 February 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-6707 Related CVEs: CVE-2023-1981 CVE-2021-3502 CVE-2021-3468 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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Oracle Linux 9 — Systems With Btrfs Fail to Boot in FIPS Mode — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — Systems With Btrfs Fail to Boot in FIPS Mode (SR1-QHL-NZB)

🟠 High   ⏱ 5–30 min  Last verified: 13 February 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: Oracle Bug OLRNT-topic_sr1_qhl_nzb 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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Common Problems 118625

Ubuntu 16.04 LTS – Docker daemon fails to start

🟠 High   ⏱ 5–30 min  Last verified: 13 February 2023 Affected versions: Ubuntu 16.04 LTS Ubuntu 16.04 Ubuntu 16.04.7 📖 ~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 […]

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Debian 11 — libhx — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libhx — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 13 February 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2010-2947 Upstream summary: Heap-based buffer overflow in the HX_split function in string.c in libHX before 3.6 allows remote attackers to execute arbitrary code or cause a denial of […]

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Debian 11 — pdfcrack — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — pdfcrack — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 13 February 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-22336 Upstream summary: An issue was discovered in pdfcrack 0.17 thru 0.18, allows attackers to execute arbitrary code via a stack overflow in the MD5 function. Table of […]

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

Debian 11 — dbus-broker — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 13 February 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2022-31212 CVE-2022-31213 Upstream summary: An issue was discovered in dbus-broker before 31. It depends on c-uitl/c-shquote to parse the DBus service's Exec line. c-shquote contains a stack-based buffer […]

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