Debian 11

Common Problems 120589

Debian 11 Sudo Stops Working for Admin Group

🟠 High   ⏱ 5–30 min  Last verified: 4 October 2022 Affected versions: Debian 11 📖 ~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 & Hardening Related Errors & […]

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Debian 11 — rbdoom3bfg — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — rbdoom3bfg — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 4 October 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-15007 Upstream summary: A buffer overflow in the M_LoadDefaults function in m_misc.c in id Tech 1 (aka Doom engine) allows arbitrary code execution via an unsafe usage of […]

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

Debian 11 — mpop — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 4 October 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-8337 Upstream summary: In msmtp 1.8.2 and mpop 1.4.3, when tls_trust_file has its default configuration, certificate-verification results are not properly checked. Table of contents Symptom & Impact Environment […]

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How to Configure Docker Security Scanning on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Configure Docker Security Scanning on Debian 11

Introduction This guide explains how to Configure Docker Security Scanning on Debian 11 on Debian 11 Bullseye. Debian Bullseye uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 11 install with the […]

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

Debian 11 — ruby-mechanize — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 4 October 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-21289 CVE-2022-31033 Upstream summary: Mechanize is an open-source ruby library that makes automated web interaction easy. In Mechanize from version 2.0.0 and before version 2.7.7 there is a […]

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Debian 11 — libconvert-asn1-perl — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libconvert-asn1-perl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 4 October 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-7488 Upstream summary: perl-Convert-ASN1 (aka the Convert::ASN1 module for Perl) through 0.27 allows remote attackers to cause an infinite loop via unexpected input. Table of contents Symptom & […]

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

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

🟠 High   ⏱ 15–60 min  Last verified: 4 October 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2018-16981 CVE-2019-13217 CVE-2019-13218 CVE-2019-13219 CVE-2019-13220 CVE-2019-13221 CVE-2019-13222 CVE-2019-13223  +12 more Upstream summary: stb stb_image.h 2.19, as used in catimg, Emscripten, and other products, has a heap-based buffer overflow […]

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Common Problems 120609

Debian 11 DHCP Lease Not Renewing on Servers

🟡 Medium   ⏱ 5–30 min  Last verified: 3 October 2022 Affected versions: Debian 11 📖 ~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 & Hardening Related Errors & […]

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Debian 11 — jakarta-el-api — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — jakarta-el-api — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 October 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-28170 Upstream summary: In the Jakarta Expression Language implementation 3.0.3 and earlier, a bug in the ELParserTokenManager enables invalid EL expressions to be evaluated as if they were […]

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