Linux

Ubuntu 20.04 — dogtag-pki — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — dogtag-pki — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 8 October 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8158-1 Related CVEs: CVE-2021-20179 Upstream summary: Fraser Tweedale and Geetika Kapoor discovered that Dogtag PKI could renew a certificate without proper authentication. An attacker could possibly use this to repeatedly […]

Read more
AlmaLinux 8 — rt-tests — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — rt-tests — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2022:1837 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 […]

Read more
Ubuntu 20.04 — open-iscsi — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — open-iscsi — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 8 October 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6259-1 Related CVEs: CVE-2020-13987 CVE-2020-13988 CVE-2020-17437 Upstream summary: Jos Wetzels, Stanislav Dashevskyi, and Amine Amri discovered that Open-iSCSI incorrectly handled certain checksums for IP packets. An attacker could possibly use […]

Read more
Oracle Linux 8 — openblas — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — openblas — vulnerability — patch and remediation guide (ELSA-2022-7639)

🟡 Medium   ⏱ 10–30 min  Last verified: 8 October 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-7639 Related CVEs: CVE-2021-4048 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

Read more
Oracle Linux 8 — idm:DL1 and idm:client security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — idm:DL1 and idm:client security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2020-4670)

🟡 Medium   ⏱ 10–30 min  Last verified: 7 October 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-4670 Related CVEs: CVE-2018-14040 CVE-2018-20677 CVE-2016-10735 CVE-2018-14042 CVE-2020-11022 CVE-2019-8331 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

Read more
Debian 11 — xsp — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — xsp — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 7 October 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2006-2658 Upstream summary: Directory traversal vulnerability in the xsp component in mod_mono in Mono/C# web server, as used in SUSE Open-Enterprise-Server 1 and SUSE Linux 9.2 through 10.0, […]

Read more
Debian 11 — jsch — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — jsch — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 7 October 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-5725 Upstream summary: Directory traversal vulnerability in JCraft JSch before 0.1.54 on Windows, when the mode is ChannelSftp.OVERWRITE, allows remote SFTP servers to write to arbitrary files via […]

Read more
Debian 11 — opencv — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — opencv — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 7 October 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-1516 CVE-2016-1517 CVE-2017-1000450 CVE-2017-12597 CVE-2017-12598 CVE-2017-12599 CVE-2017-12600 CVE-2017-12601  +12 more Upstream summary: OpenCV 3.0.0 has a double free issue that allows attackers to execute arbitrary code. Table of […]

Read more
Ubuntu 18.04 — dogtag-pki — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — dogtag-pki — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 7 October 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8158-1 Related CVEs: CVE-2021-20179 Upstream summary: Fraser Tweedale and Geetika Kapoor discovered that Dogtag PKI could renew a certificate without proper authentication. An attacker could possibly use this to repeatedly […]

Read more
CHAT