🟡 Medium ⏱ 10–30 min Last verified: 30 June 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-6360-1 Related CVEs: CVE-2020-22219 CVE-2017-6888 CVE-2020-0499 CVE-2021-0561 Upstream summary: It was discovered that FLAC incorrectly handled encoding certain files. A remote attacker could use this issue to cause FLAC to […]
🟡 Medium ⏱ 10–30 min Last verified: 30 June 2022 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5956-2 Related CVEs: CVE-2017-11503 CVE-2016-10033 CVE-2016-10045 CVE-2017-5223 CVE-2018-19296 CVE-2020-13625 CVE-2021-3603 Upstream summary: USN-5956-1 fixed vulnerabilities in PHPMailer. It was discovered that the fix for CVE-2017-11503 was incomplete. This update fixes […]
Suricata is a Network Security Monitoring (NSM) tool that uses sets of community created and user defined signatures (also referred to as rules) to examine and process network traffic. Suricata can generate log events, trigger alerts, and drop traffic…
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read • Source: Amazon Linux advisory ALAS2LIVEPATCH-2021-061 Related CVEs: CVE-2021-40490 CVE-2021-33909 Upstream summary: No CVE associated with this advisory Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution […]
Introduction This guide explains how to Configure Postfix Mail Server on Debian 11 on Debian 11 Bullseye. Debian Bullseye uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 11 install with the […]
🟢 Low ⏱ 5–15 min Last verified: 29 June 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2021-29376 Upstream summary: ircII before 20210314 allows remote attackers to cause a denial of service (segmentation fault and client crash, disconnecting the victim from an IRC server) via […]
🟢 Low ⏱ 5–15 min Last verified: 29 June 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2003-0850 CVE-2010-0751 Upstream summary: The TCP reassembly functionality in libnids before 1.18 allows remote attackers to cause "memory corruption" and possibly execute arbitrary code via "overlarge TCP packets." […]
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: AlmaLinux 9 📖 ~4 min read • Source: AlmaLinux ALSA ALSA-2022:5099 Related CVEs: CVE-2021-3695 CVE-2021-3696 CVE-2021-3697 CVE-2022-28733 CVE-2022-28734 CVE-2022-28735 CVE-2022-28736 CVE-2022-28737 Upstream summary: The grub2 packages provide version 2 of the Grand Unified Boot Loader (GRUB), a highly configurable and customizable boot […]
🟡 Medium ⏱ 10–30 min Last verified: 29 June 2022 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2022-5338 Related CVEs: CVE-2022-28739 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
🟢 Low ⏱ 5–15 min Last verified: 29 June 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2019-11037 Upstream summary: In PHP imagick extension in versions between 3.3.0 and 3.4.4, writing to an array of values in ImagickKernel::fromMatrix() function did not check that the address […]
