Security Hardening

Debian 12 — ruby-apollo-upload-server — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — ruby-apollo-upload-server — 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-2021-39880 Upstream summary: A Denial Of Service vulnerability in the apollo_upload_server Ruby gem in GitLab CE/EE all versions starting from 11.9 before 14.0.9, all versions starting from 14.1 […]

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Debian 12 — mupen64plus-core — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — mupen64plus-core — 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-2025-29366 CVE-2025-9688 Upstream summary: In mupen64plus v2.6.0 there is an array overflow vulnerability in the write_rdram_regs and write_rdram_regs functions, which enables executing arbitrary commands on the host machine. […]

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

Debian 12 — beanstalkd — 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-2010-2060 Upstream summary: The put command functionality in beanstalkd 1.4.5 and earlier allows remote attackers to execute arbitrary Beanstalk commands via the body in a job that is […]

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

Debian 13 — hcxtools — 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-2021-32286 Upstream summary: An issue was discovered in hcxtools through 6.1.6. A global-buffer-overflow exists in the function pcapngoptionwalk located in hcxpcapngtool.c. It allows an attacker to cause code Execution. […]

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Debian 11 — libpcap — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libpcap — multiple vulnerabilities (9 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-2011-1935 CVE-2019-15161 CVE-2019-15162 CVE-2019-15163 CVE-2019-15164 CVE-2019-15165 CVE-2023-7256 CVE-2024-8006  +1 more Upstream summary: pcap-linux.c in libpcap 1.1.1 before commit ea9432fabdf4b33cbc76d9437200e028f1c47c93 when snaplen is set may truncate packets, which might […]

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

Debian 11 — librsync — 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-2014-8242 Upstream summary: librsync before 1.0.0 uses a truncated MD4 checksum to match blocks, which makes it easier for remote attackers to modify transmitted data via a birthday […]

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Debian 12 — smarty4 — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — smarty4 — 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-2018-25047 CVE-2021-21408 CVE-2021-29454 CVE-2022-29221 CVE-2023-28447 CVE-2024-35226 Upstream summary: In Smarty before 3.1.47 and 4.x before 4.2.1, libs/plugins/function.mailto.php allows XSS. A web page that uses smarty_function_mailto, and that could […]

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Debian 11 — python-requests-kerberos — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — python-requests-kerberos — 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-2014-8650 Upstream summary: python-requests-Kerberos through 0.5 does not handle mutual authentication Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution […]

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Debian 12 — libcrypt-dsa-perl — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — libcrypt-dsa-perl — 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-2011-3599 CVE-2026-8700 CVE-2026-8704 Upstream summary: The Crypt::DSA (aka Crypt-DSA) module 1.17 and earlier for Perl, when /dev/random is absent, uses the Data::Random module, which makes it easier for […]

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