Debian 11

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

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

🟠 High   ⏱ 15–60 min  Last verified: 8 June 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2007-2721 CVE-2007-6725 CVE-2008-0411 CVE-2008-3520 CVE-2008-3522 CVE-2008-6679 CVE-2009-0196 CVE-2009-0583  +12 more Upstream summary: The jpc_qcx_getcompparms function in jpc/jpc_cs.c for the JasPer JPEG-2000 library (libjasper) before 1.900 allows remote user-assisted […]

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Common Problems 120659

Debian 11 Swap Not Activating at Boot

🟡 Medium   ⏱ 5–30 min  Last verified: 7 June 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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How to Configure Redis Cluster on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Configure Redis Cluster on Debian 11

Introduction How to Configure Redis Cluster 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 11. This […]

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Common Problems 120473

Debian 11 Release File Is Not Valid Yet During apt update

🟠 High   ⏱ 5–30 min  Last verified: 6 June 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 — tcl8.6 — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — tcl8.6 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 6 June 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-35331 Upstream summary: In Tcl 8.6.11, a format string vulnerability in nmakehlp.c might allow code execution via a crafted file. NOTE: multiple third parties dispute the significance of […]

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Debian 11 — html2ps — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — html2ps — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 6 June 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2002-1275 CVE-2009-5067 Upstream summary: Unknown vulnerability in html2ps HTML/PostScript converter 1.0, when used within LPRng, allows remote attackers to execute arbitrary code via "unsanitized input." Table of contents […]

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How to Set Up a Python FastAPI Application on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Set Up a Python FastAPI Application on Debian 11

Introduction How to Set Up a Python FastAPI Application 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 […]

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Debian 11 — python-urllib3 — multiple vulnerabilities (17 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — python-urllib3 — multiple vulnerabilities (17 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 6 June 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-2099 CVE-2018-20060 CVE-2018-25091 CVE-2019-11236 CVE-2019-11324 CVE-2020-26137 CVE-2020-7212 CVE-2021-28363  +9 more Upstream summary: Algorithmic complexity vulnerability in the ssl.match_hostname function in Python 3.2.x, 3.3.x, and earlier, and unspecified versions […]

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

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

🟠 High   ⏱ 15–60 min  Last verified: 6 June 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2004-0803 CVE-2004-0804 CVE-2004-0886 CVE-2004-1183 CVE-2004-1307 CVE-2004-1308 CVE-2005-1544 CVE-2005-2452  +12 more Upstream summary: Multiple vulnerabilities in the RLE (run length encoding) decoders for libtiff 3.6.1 and earlier, related to […]

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