Debian 11

Debian 11 — libxi — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libxi — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 30 August 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-1984 CVE-2013-1995 CVE-2013-1998 CVE-2016-7945 CVE-2016-7946 Upstream summary: Multiple integer overflows in X.org libXi 1.7.1 and earlier allow X servers to trigger allocation of insufficient memory and a buffer […]

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Debian 11 — minidjvu — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — minidjvu — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 30 August 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-12441 CVE-2017-12442 CVE-2017-12443 CVE-2017-12444 CVE-2017-12445 Upstream summary: The row_is_empty function in base/4bitmap.c:274 in minidjvu 0.8 can cause a denial of service (invalid memory read and application crash) via […]

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

Debian 11 — dtach — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 30 August 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-3368 Upstream summary: Integer signedness error in attach.c in dtach 0.8 allows remote attackers to obtain sensitive information from daemon stack memory in opportunistic circumstances by reading application […]

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Common Problems 120508

Debian 11 – unattended-upgrades lock prevents manual apt operations

🟡 Medium   ⏱ 5–30 min  Last verified: 29 August 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 — maven — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — maven — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 August 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-26291 Upstream summary: Apache Maven will follow repositories that are defined in a dependency’s Project Object Model (pom) which may be surprising to some users, resulting in potential […]

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Debian 11 — mod-wsgi — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — mod-wsgi — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 29 August 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-0240 CVE-2014-0242 CVE-2014-8583 CVE-2022-2255 Upstream summary: The mod_wsgi module before 3.5 for Apache, when daemon mode is enabled, does not properly handle error codes returned by setuid when […]

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Debian 11 — lua5.2 — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — lua5.2 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 August 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-5461 Upstream summary: Buffer overflow in the vararg functions in ldo.c in Lua 5.1 through 5.2.x before 5.2.3 allows context-dependent attackers to cause a denial of service (crash) […]

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

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

🟠 High   ⏱ 15–60 min  Last verified: 29 August 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-0876 CVE-2005-0877 CVE-2006-2017 CVE-2008-1447 CVE-2008-3214 CVE-2008-3350 CVE-2009-2957 CVE-2009-2958  +12 more Upstream summary: Off-by-one buffer overflow in Dnsmasq before 2.21 may allow attackers to execute arbitrary code via the […]

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How to Perform a CIS Benchmark Audit on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Perform a CIS Benchmark Audit on Debian 11

Introduction How to Perform a CIS Benchmark Audit on Debian 11 is a fundamental operation for any administrator maintaining a Debian 11 Bullseye server. Debian 11 Bullseye ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian […]

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Common Problems 120488

Debian 11 – dpkg was interrupted and package configuration is incomplete

🟠 High   ⏱ 5–30 min  Last verified: 28 August 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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