Common Problems

Debian 11 — courier-authlib — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — courier-authlib — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 31 August 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-2380 CVE-2008-2667 CVE-2021-28374 Upstream summary: SQL injection vulnerability in authpgsqllib.c in Courier-Authlib before 0.62.0, when a non-Latin locale Postgres database is used, allows remote attackers to execute arbitrary […]

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Debian 11 — python-hpack — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — python-hpack — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 31 August 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-6581 Upstream summary: A HTTP/2 implementation built using any version of the Python HPACK library between v1.0.0 and v2.2.0 could be targeted for a denial of service attack, […]

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

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

🟢 Low   ⏱ 5–15 min  Last verified: 31 August 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2010-4817 CVE-2011-1500 Upstream summary: pithos before 0.3.5 allows overwrite of arbitrary files via symlinks. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

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Gentoo Linux — net-proxy/tinyproxy — vulnerability — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — net-proxy/tinyproxy — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202305-27 Related CVEs: CVE-2022-40468 Upstream summary: Tinyproxy's request processing does not sufficiently null-initialize variables used in error pages. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

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

Ubuntu 16.04 — ecdsautils — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 31 August 2022 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6239-1 Related CVEs: CVE-2022-24884 Upstream summary: It was discovered that ECDSA Util did not properly verify certain signature values. An attacker could possibly use this issue to bypass signature verification. […]

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Ubuntu 18.04 — swish-e — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — swish-e — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 31 August 2022 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8240-1 Related CVEs: CVE-2022-25236 CVE-2022-25235 Upstream summary: It was discovered that Expat, vendored in Swish-e incorrectly handled certain files. An attacker could possibly use this issue to cause a crash […]

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Oracle Linux 9 — pixman — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — pixman — vulnerability — patch and remediation guide (ELSA-2023-7754)

🟡 Medium   ⏱ 10–30 min  Last verified: 31 August 2022 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-7754 Related CVEs: CVE-2022-44638 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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Rocky Linux 9 — pixman — vulnerability — patch and remediation guide — diagnosis and fix on Rocky Linux 9

Rocky Linux 9 — pixman — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Rocky Linux 9 📖 ~4 min read  •  Source: Rocky Linux RXSA RLSA-2023:7754 Related CVEs: CVE-2022-44638 Upstream summary: Pixman is a pixel manipulation library for the X Window System and Cairo. Security Fix(es): * pixman: Integer overflow in pixman_sample_floor_y leading to heap […]

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