Common Problems

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

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

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2018-12066 CVE-2019-16159 Upstream summary: BIRD Internet Routing Daemon before 1.6.4 allows local users to cause a denial of service (stack consumption and daemon crash) via BGP mask expressions […]

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Debian 13 — ganeti — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — ganeti — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-4261 CVE-2014-5247 CVE-2015-7944 CVE-2015-7945 Upstream summary: Multiple directory traversal vulnerabilities in the iallocator framework in Ganeti 1.2.4 through 1.2.8, 2.0.0 through 2.0.4, and 2.1.0 before 2.1.0~rc2 allow (1) […]

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Debian 12 — libnet-cidr-perl — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — libnet-cidr-perl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-4456 Upstream summary: Net::CIDR versions before 0.24 for Perl mishandle leading zeros in IP CIDR addresses, which may have unspecified impact. The functions `addr2cidr` and `cidrlookup` may return […]

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Debian 12 — erlang-cowlib — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — erlang-cowlib — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2026-43970 CVE-2026-7790 Upstream summary: Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in ninenines cowlib allows unauthenticated remote denial of service via memory exhaustion. cow_spdy:inflate/2 in cowlib […]

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Debian 13 — python-pyftpdlib — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — python-pyftpdlib — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-5011 CVE-2009-5012 CVE-2009-5013 CVE-2010-3494 Upstream summary: Race condition in the FTPHandler class in ftpserver.py in pyftpdlib before 0.5.2 allows remote attackers to cause a denial of service (daemon […]

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Debian 12 — python-dotenv — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — python-dotenv — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2026-28684 Upstream summary: python-dotenv reads key-value pairs from a .env file and can set them as environment variables. Prior to version 1.2.2, `set_key()` and `unset_key()` in python-dotenv follow […]

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Debian 13 — sphinxsearch — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — sphinxsearch — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-14511 CVE-2020-29050 Upstream summary: Sphinx Technologies Sphinx 3.1.1 by default has no authentication and listens on 0.0.0.0, making it exposed to the internet (unless filtered by a firewall […]

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Debian 12 — mesa — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — mesa — multiple vulnerabilities (10 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-2864 CVE-2012-5129 CVE-2013-1872 CVE-2013-1993 CVE-2019-5068 CVE-2023-45913 CVE-2023-45919 CVE-2023-45922  +2 more Upstream summary: Mesa, as used in Google Chrome before 21.0.1183.0 on the Acer AC700, Cr-48, and Samsung Series […]

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Debian 11 — dhis-tools-dns — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — dhis-tools-dns — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-3341 Upstream summary: DHIS tools DNS package (dhis-tools-dns) before 5.0 allows local users to overwrite arbitrary files via a symlink attack on temporary files created by (1) register-q.sh […]

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