Debian 11

Common Problems 120559

Debian 11 DNS Resolution Intermittently Fails

🟡 Medium   ⏱ 5–30 min  Last verified: 17 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 — libpar-perl — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libpar-perl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 17 August 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2011-5060 Upstream summary: The par_mktmpdir function in the PAR module before 1.003 for Perl creates temporary files in a directory with a predictable name without verifying ownership and […]

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

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

🟢 Low   ⏱ 5–15 min  Last verified: 17 August 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-5008 CVE-2017-7697 Upstream summary: Buffer overflow in src/src_sinc.c in Secret Rabbit Code (aka SRC or libsamplerate) before 0.1.4, when "extreme low conversion ratios" are used, allows user-assisted attackers […]

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

Debian 11 — gobby — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 17 August 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-35450 Upstream summary: Gobby 0.4.11 allows a NULL pointer dereference in the D-Bus handler for certain set_language calls. Table of contents Symptom & Impact Environment & Reproduction Root […]

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How to Configure Docker Overlay Networking on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Configure Docker Overlay Networking on Debian 11

Introduction Deploying configure docker overlay networking on debian 11 on a Debian 11 Bullseye machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before you […]

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

Debian 11 — freecol — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 16 August 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2018-1000825 Upstream summary: FreeCol version <= nightly-2018-08-22 contains a XML External Entity (XXE) vulnerability in FreeColXMLReader parser that can result in Disclosure of confidential data, denial of service, […]

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

Debian 11 — libjgroups-java — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 16 August 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-4112 CVE-2016-2141 Upstream summary: The DiagnosticsHandler in JGroup 3.0.x, 3.1.x, 3.2.x before 3.2.9, and 3.3.x before 3.3.3 allows remote attackers to obtain sensitive information (diagnostic information) and execute […]

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

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

🟢 Low   ⏱ 5–15 min  Last verified: 16 August 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-3458 CVE-2013-7489 Upstream summary: Beaker before 1.6.4, when using PyCrypto to encrypt sessions, uses AES in ECB cipher mode, which might allow remote attackers to obtain portions of […]

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How to Configure Nginx as a TCP/UDP Load Balancer on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Configure Nginx as a TCP/UDP Load Balancer on Debian 11 (ON-DEBIAN-11)

Introduction Deploying configure nginx as a tcp/udp load balancer on debian 11 on a Debian 11 Bullseye machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. […]

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

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

🟢 Low   ⏱ 5–15 min  Last verified: 15 August 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2006-2314 CVE-2009-2940 Upstream summary: PostgreSQL 8.1.x before 8.1.4, 8.0.x before 8.0.8, 7.4.x before 7.4.13, 7.3.x before 7.3.15, and earlier versions allows context-dependent attackers to bypass SQL injection protection […]

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