Common Problems

FreeBSD 13 — dante — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — dante — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 11 May 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: fd_set — bitmap index overflow in multiple applications Upstream summary: 3APA3A reports: If programmer fails to check socket number before using select() or fd_set macros, it's possible to overwrite memory […]

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Amazon Linux 2 — kernel-livepatch-4.14.193-149.317 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — kernel-livepatch-4.14.193-149.317 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2LIVEPATCH-2020-029 Related CVEs: CVE-2020-25211 CVE-2020-25284 Upstream summary: A flaw was found in the Linux kernel. A local attacker, able to inject conntrack netlink configuration, could overflow a local buffer causing […]

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FreeBSD 13 — xdeview — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — xdeview — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 11 May 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: uudeview buffer overflows Upstream summary: The authors of UUDeview report repairing two buffer overflows in their software. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick […]

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Ubuntu 16.04 — blueman — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — blueman — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 11 May 2021 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4605-1 Related CVEs: CVE-2020-15238 Upstream summary: Vaisha Bernard discovered that blueman did not properly sanitize input on the d-bus interface to blueman-mechanism. A local attacker could possibly use this issue […]

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SLES 15 — python311-httpx — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — python311-httpx — vulnerability — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 11 May 2021 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2021-41945 Upstream summary: Encode OSS httpx < 0.23.0 is affected by improper input validation in `httpx.URL`, `httpx.Client` and some functions using `httpx.URL.copy_with`. Table of contents […]

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Amazon Linux 2 — kernel-livepatch-4.14.200-155.322 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — kernel-livepatch-4.14.200-155.322 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2LIVEPATCH-2021-031 Related CVEs: CVE-2020-29660 CVE-2020-29661 Upstream summary: A locking inconsistency issue was discovered in the tty subsystem of the Linux kernel through 5.9.13. drivers/tty/tty_io.c and drivers/tty/tty_jobctrl.c may allow a read-after-free […]

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Debian 9 — git — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — git — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 11 May 2021 Affected versions: Debian 9 (stretch) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-1000117 CVE-2017-14867 CVE-2018-11235 CVE-2018-17456 CVE-2019-1348 CVE-2020-11008 CVE-2020-5260 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 8 — net-snmp — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — net-snmp — security and stability fixes — required update (ELSA-2023-2969)

🟡 Medium   ⏱ 10–30 min  Last verified: 10 May 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-2969 Related CVEs: CVE-2022-44793 CVE-2022-44792 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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AlmaLinux 8 — sblim-indication_helper — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — sblim-indication_helper — 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-2019:3468 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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