Security Hardening

Debian 12 — lldpd — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — lldpd — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-8011 CVE-2015-8012 CVE-2020-27827 CVE-2021-43612 CVE-2023-41910 CVE-2026-46433 Upstream summary: Buffer overflow in the lldp_decode function in daemon/protocols/lldp.c in lldpd before 0.8.0 allows remote attackers to cause a denial of […]

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Debian 11 — prometheus-alertmanager — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — prometheus-alertmanager — 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-2023-40577 Upstream summary: Alertmanager handles alerts sent by client applications such as the Prometheus server. An attacker with the permission to perform POST requests on the /api/v1/alerts endpoint […]

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Debian 12 — gtkpod — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — gtkpod — 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-2021-37231 Upstream summary: A stack-buffer-overflow occurs in Atomicparsley 20210124.204813.840499f through APar_readX() in src/util.cpp while parsing a crafted mp4 file because of the missing boundary check. Table of contents […]

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Debian 11 — liblwp-protocol-https-perl — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — liblwp-protocol-https-perl — 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-2014-3230 Upstream summary: The libwww-perl LWP::Protocol::https module 6.04 through 6.06 for Perl, when using IO::Socket::SSL as the SSL socket class, allows attackers to disable server certificate validation via […]

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Debian 12 — sdcc — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — sdcc — 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-2009-3736 Upstream summary: ltdl.c in libltdl in GNU Libtool 1.5.x, and 2.2.6 before 2.2.6b, as used in Ham Radio Control Libraries, Q, and possibly other products, attempts to […]

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Debian 12 — advi — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — advi — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-2295 CVE-2009-2660 CVE-2009-3296 Upstream summary: Multiple integer overflows in CamlImages 2.2 and earlier might allow context-dependent attackers to execute arbitrary code via a crafted PNG image with large […]

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Debian 11 — zipios++ — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — zipios++ — 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-2019-13453 Upstream summary: Zipios before 0.1.7 does not properly handle certain malformed zip archives and can go into an infinite loop, causing a denial of service. This is […]

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

Debian 13 — splitvt — vulnerability — 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-2008-0162 Upstream summary: misc.c in splitvt 1.6.6 and earlier does not drop group privileges before executing xprop, which allows local users to gain privileges. Table of contents Symptom […]

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Debian 13 — vega.js — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — vega.js — multiple vulnerabilities (8 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-2023-26486 CVE-2023-26487 CVE-2025-25304 CVE-2025-26619 CVE-2025-27793 CVE-2025-59840 CVE-2025-65110 CVE-2025-66648 Upstream summary: Vega is a visualization grammar, a declarative format for creating, saving, and sharing interactive visualization designs. The Vega […]

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