Common Problems

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

Debian 11 — petris — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 4 April 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-3540 Upstream summary: Buffer overflow in petris before 1.0.1 allows remote attackers to execute arbitrary code via unspecified attack vectors. Table of contents Symptom & Impact Environment & […]

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

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

🟡 Medium   ⏱ 10–30 min  Last verified: 4 April 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-2945 CVE-2005-2992 CVE-2015-9275 Upstream summary: arc 5.21j and earlier create temporary files with world-readable permissions, which allows local users to read sensitive information from files created by (1) […]

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

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

🟠 High   ⏱ 15–60 min  Last verified: 4 April 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2003-0962 CVE-2004-0426 CVE-2004-0792 CVE-2004-2093 CVE-2006-2083 CVE-2007-4091 CVE-2007-6199 CVE-2007-6200  +12 more Upstream summary: Heap-based buffer overflow in rsync before 2.5.7, when running in server mode, allows remote attackers to […]

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Ubuntu 20.04 — linuxptp — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — linuxptp — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 4 April 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6097-1 Related CVEs: CVE-2021-3570 Upstream summary: It was discovered that Linux PTP did not properly perform a length check when forwarding a PTP message between ports. A remote attacker could […]

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Alpine Linux edge — py3-mako — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — py3-mako — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 1.2.2-r0 📖 ~4 min read  •  Source: Alpine secdb entry — py3-mako 1.2.2-r0 Related CVEs: CVE-2022-40023 Upstream summary: Alpine main repository for vedge ships py3-mako 1.2.2-r0 which addresses CVE-2022-40023. Table of contents Symptom & Impact Environment […]

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SLES 15 — ppp — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — ppp — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 4 April 2022 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2020:0489-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-8597 CVE-2022-4603 CVE-2014-3158 CVE-2015-3310 Upstream summary: eap.c in pppd in ppp 2.4.2 through 2.4.8 has an rhostname buffer overflow in the eap_request and eap_response functions. […]

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Oracle Linux 8 — kernel — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — kernel — security and stability fixes — required update (ELSA-2023-0101)

🟠 High   ⏱ 15–60 min  Last verified: 3 April 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-0101 Related CVEs: CVE-2022-2964 CVE-2022-4139 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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AlmaLinux 8 — cifs-utils — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — cifs-utils — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2020:1910 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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FreeBSD 13 — isc-dhcp42-server — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — isc-dhcp42-server — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 3 April 2022 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: isc-dhcpd — Denial of Service Related CVEs: CVE-2011-2748 CVE-2011-2749 CVE-2011-4539 CVE-2011-4868 CVE-2012-3570 CVE-2012-3571 CVE-2012-3954 CVE-2015-8605 Upstream summary: ISC reports: A badly formed packet with an invalid IPv4 UDP length field […]

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