🟠 High ⏱ 5–30 min Last verified: 3 June 2026 Affected versions: Ubuntu 26.04 LTS Ubuntu 26.04 Ubuntu 26.04.1 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read • Source: Amazon Linux advisory ALAS2023-2026-1398 Related CVEs: CVE-2025-68161 Upstream summary: The Socket Appender in Apache Log4j Core versions 2.0-beta9 through 2.25.2 does not perform TLS hostname verification of the peer certificate, even when the […]
Login banners and MOTD (Message of the Day) serve both legal and operational purposes: they warn unauthorised users, satisfy compliance requirements (PCI-DSS, HIPAA, SOC 2), and display important system information to admins. This guide configures SSH banners and MOTD on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS A […]
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read • Source: Amazon Linux advisory ALAS2023-2026-1665 Related CVEs: CVE-2026-3219 CVE-2026-6357 CVE-2026-21441 CVE-2025-66418 CVE-2025-66471 CVE-2025-8869 CVE-2024-47081 CVE-2025-50181 +6 more Upstream summary: pip handles concatenated tar and ZIP files as ZIP files regardless of filename or whether […]
🟢 Low ⏱ 5–15 min Last verified: 3 June 2026 Affected versions: Debian 13 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2026-22185 Upstream summary: OpenLDAP Lightning Memory-Mapped Database (LMDB) versions up to and including 0.9.14, prior to commit 8e1fda8, contain a heap buffer underflow in the readline() function of mdb_load. […]
🟡 Medium ⏱ 10–30 min Last verified: 3 June 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2003-0744 CVE-2005-1453 CVE-2005-1911 Upstream summary: The fetchnews NNTP client in leafnode 1.9.3 to 1.9.41 allows remote attackers to cause a denial of service (process hang and termination) via […]
🟢 Low ⏱ 5–15 min Last verified: 3 June 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2021-23358 CVE-2026-27601 Upstream summary: The package underscore from 1.13.0-0 and before 1.13.0-2, from 1.3.2 and before 1.12.1 are vulnerable to Arbitrary Code Injection via the template function, particularly […]
🟢 Low ⏱ 5–15 min Last verified: 3 June 2026 Affected versions: Debian 13 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2015-3239 Upstream summary: Off-by-one error in the dwarf_to_unw_regnum function in include/dwarf_i.h in libunwind 1.1 allows local users to have unspecified impact via invalid dwarf opcodes. Table of contents Symptom […]
🟡 Medium ⏱ 10–30 min Last verified: 3 June 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2020-36407 CVE-2025-48174 CVE-2025-48175 Upstream summary: libavif 0.8.0 and 0.8.1 has an out-of-bounds write in avifDecoderDataFillImageGrid. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick […]
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Rocky Linux 10 📖 ~4 min read • Source: Rocky Linux RXSA RLSA-2026:1472 Related CVEs: CVE-2025-11187 CVE-2025-15467 CVE-2025-15468 CVE-2025-15469 CVE-2025-66199 CVE-2025-68160 CVE-2025-69418 CVE-2025-69419 +5 more Upstream summary: OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security […]
