Debian 11

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

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

🟢 Low   ⏱ 5–15 min  Last verified: 28 August 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-2958 CVE-2020-25031 Upstream summary: Race condition in (1) checkinstall 1.6.1 and (2) installwatch allows local users to overwrite arbitrary files and have other impacts via symlink and possibly […]

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

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

🟠 High   ⏱ 15–60 min  Last verified: 28 August 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-7075 CVE-2017-1000056 CVE-2017-1002101 CVE-2017-1002102 CVE-2018-1002100 CVE-2018-1002102 CVE-2018-1002105 CVE-2019-1002100  +12 more Upstream summary: It was found that Kubernetes as used by Openshift Enterprise 3 did not correctly validate X.509 […]

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

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

🟠 High   ⏱ 15–60 min  Last verified: 28 August 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2002-0380 CVE-2002-1350 CVE-2003-0093 CVE-2003-0108 CVE-2003-0145 CVE-2003-0989 CVE-2003-1029 CVE-2004-0055  +12 more Upstream summary: Buffer overflow in tcpdump 3.6.2 and earlier allows remote attackers to cause a denial of service […]

Read more
How to Set Up Dovecot IMAP Server on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Set Up Dovecot IMAP Server on Debian 11

Introduction Deploying set up dovecot imap server 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 […]

Read more
Common Problems 120491

Debian 11 – GRUB Rescue Prompt After Kernel Update – Restore Bootability

🔴 Critical   ⏱ 5–30 min  Last verified: 27 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 & […]

Read more
How to Set Up Snapshots with LVM on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Set Up Snapshots with LVM on Debian 11

Introduction How to Set Up Snapshots with LVM 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 […]

Read more
Debian 11 — tcc — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — tcc — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 27 August 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2006-0635 CVE-2018-20374 CVE-2018-20375 CVE-2018-20376 CVE-2019-12495 CVE-2019-9754 Upstream summary: Tiny C Compiler (TCC) 0.9.23 (aka TinyCC) evaluates the "i>sizeof(int)" expression to false when i equals -1, which might introduce […]

Read more
Debian 11 — openttd — multiple vulnerabilities (15 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — openttd — multiple vulnerabilities (15 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 27 August 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-3547 CVE-2008-3576 CVE-2008-3577 CVE-2009-4007 CVE-2010-0401 CVE-2010-0402 CVE-2010-0406 CVE-2010-2534  +7 more Upstream summary: Buffer overflow in the server in OpenTTD 0.6.1 and earlier allows remote authenticated users to cause […]

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

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

🟠 High   ⏱ 15–60 min  Last verified: 27 August 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-1300 CVE-2009-1358 CVE-2011-1829 CVE-2011-3374 CVE-2011-3634 CVE-2012-0214 CVE-2012-0954 CVE-2012-0961  +12 more Upstream summary: apt 0.7.20 does not check when the date command returns an "invalid date" error, which can […]

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

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

🟠 High   ⏱ 15–60 min  Last verified: 27 August 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-0852 CVE-2015-3885 CVE-2016-5684 CVE-2019-12211 CVE-2019-12212 CVE-2019-12213 CVE-2019-12214 CVE-2020-21426  +12 more Upstream summary: Multiple integer underflows in PluginPCX.cpp in FreeImage 3.17.0 and earlier allow remote attackers to cause a […]

Read more
CHAT