Troubleshooting

Debian 11 — qpdf — multiple vulnerabilities (18 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — qpdf — multiple vulnerabilities (18 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-9252 CVE-2017-11624 CVE-2017-11625 CVE-2017-11626 CVE-2017-11627 CVE-2017-12595 CVE-2017-18183 CVE-2017-18184  +10 more Upstream summary: An issue was discovered in QPDF before 7.0.0. Endless recursion causes stack exhaustion in QPDFTokenizer::resolveLiteral() in […]

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Debian 11 — cairosvg — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — cairosvg — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-21236 CVE-2023-27586 CVE-2026-31899 Upstream summary: CairoSVG is a Python (pypi) package. CairoSVG is an SVG converter based on Cairo. In CairoSVG before version 2.5.1, there is a regular […]

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Debian 13 — giftrans — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — giftrans — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-45972 Upstream summary: The giftrans function in giftrans 1.12.2 contains a stack-based buffer overflow because a value inside the input file determines the amount of data to write. This […]

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

Debian 13 — pyjwt — 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-2017-11424 CVE-2022-29217 CVE-2025-45768 CVE-2026-32597 Upstream summary: In PyJWT 1.5.0 and below the `invalid_strings` check in `HMACAlgorithm.prepare_key` does not account for all PEM encoded public keys. Specifically, the PKCS1 […]

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Debian 13 — unrtf — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — unrtf — multiple vulnerabilities (6 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-2004-1297 CVE-2014-9274 CVE-2014-9275 CVE-2016-10091 CVE-2025-65410 CVE-2025-65411 Upstream summary: Buffer overflow in the process_font_table function in convert.c for unrtf 0.19.3 allows remote attackers to execute arbitrary code via a […]

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

Debian 13 — docker-registry — 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-2017-11468 CVE-2023-2253 CVE-2026-33540 CVE-2026-35172 Upstream summary: Docker Registry before 2.6.2 in Docker Distribution does not properly restrict the amount of content accepted from a user, which allows remote […]

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Debian 11 — po4a — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — po4a — 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-2007-4462 Upstream summary: lib/Locale/Po4a/Po.pm in po4a before 0.32 allows local users to overwrite arbitrary files via a symlink attack on the gettextization.failed.po temporary file. Table of contents Symptom […]

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Debian 11 — snapd — multiple vulnerabilities (18 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — snapd — multiple vulnerabilities (18 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-14178 CVE-2019-11502 CVE-2019-11503 CVE-2019-7303 CVE-2019-7304 CVE-2020-11934 CVE-2020-27352 CVE-2021-3155  +10 more Upstream summary: In snapd 2.27 through 2.29.2 the 'snap logs' command could be made to call journalctl without […]

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Debian 13 — yelp-xsl — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — yelp-xsl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2025-3155 Upstream summary: A flaw was found in Yelp. The Gnome user help application allows the help document to execute arbitrary scripts. This vulnerability allows malicious users to input […]

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