Linux

SLES 15 — python311-Pillow — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — python311-Pillow — multiple vulnerabilities (11 CVEs) — patch and remediation guide

  • September 17, 2022
  • Linux
  • Comment off

🔴 Critical   ⏱ 15–90 min  Last verified: 17 September 2022 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2025:14645-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-30595 CVE-2020-35653 CVE-2020-35655 CVE-2021-25291 CVE-2014-3589 CVE-2014-3598 CVE-2016-0740 CVE-2016-0775  +3 more Upstream summary: libImaging/TgaRleDecode.c in Pillow 9.1.0 has a heap buffer overflow in the processing of […]

Read more
openSUSE Tumbleweed — jawn-ast — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — jawn-ast — vulnerability — patch and remediation guide

  • September 17, 2022
  • Linux
  • Comment off

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2022:0011-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-21653 Upstream summary: Jawn is an open source JSON parser. Extenders of the `org.typelevel.jawn.SimpleFacade` and `org.typelevel.jawn.MutableFacade` who don't override `objectContext()` are vulnerable to a hash […]

Read more
How to Set Up Grafana Alerting and Notification Channels on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Set Up Grafana Alerting and Notification Channels on RHEL 9

  • September 17, 2022
  • Linux
  • Comment off

Grafana Unified Alerting, introduced in Grafana 9 and enabled by default in Grafana 10+, provides a centralised alerting engine that works across all data sources and replaces the older per-panel Legacy Alerting system. On RHEL 9, configuring Grafana alerting correctly means setting up contact points for notification delivery, building a notification policy routing tree that […]

Read more
Common Problems 120538

Debian 11 – update-initramfs fails with missing modules or hooks

  • September 16, 2022
  • Linux
  • Comment off

🟠 High   ⏱ 5–30 min  Last verified: 16 September 2022 Affected versions: Debian 11 📖 ~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 & Hardening Related Errors & […]

Read more
AlmaLinux 8 — lldpad — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — lldpad — vulnerability — patch and remediation guide

  • September 16, 2022
  • Linux
  • Comment off

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2021:4447 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 […]

Read more
Common Problems 117012

Ubuntu 22.04 UFW blocks expected application traffic

  • September 16, 2022
  • Linux
  • Comment off

🟡 Medium   ⏱ 5–30 min  Last verified: 16 September 2022 📖 ~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 & Hardening Related Errors & Cross-Refs References & Further […]

Read more
AlmaLinux 8 — fontconfig — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — fontconfig — vulnerability — patch and remediation guide

  • September 16, 2022
  • Linux
  • Comment off

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2021:4507 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 […]

Read more
Debian 11 — miredo — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — miredo — vulnerability — patch and remediation guide

  • September 16, 2022
  • Linux
  • Comment off

🟢 Low   ⏱ 5–15 min  Last verified: 16 September 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2006-6858 Upstream summary: Miredo 0.9.8 through 1.0.5 does not properly authenticate a Teredo bubble during UDP hole punching with HMAC-MD5-64 hashing, which allows remote attackers to impersonate an […]

Read more
How to Set Up Automatic Security Updates on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Set Up Automatic Security Updates on Debian 11

  • September 16, 2022
  • Linux
  • Comment off

Introduction Debian 11 Bullseye is built around the ethos of stability and free software. Setting up set up automatic security updates on debian 11 on Bullseye leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bullseye freeze. Follow each step carefully […]

Read more
Debian 11 — ksh — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — ksh — vulnerability — patch and remediation guide

  • September 16, 2022
  • Linux
  • Comment off

🟢 Low   ⏱ 5–15 min  Last verified: 16 September 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-14868 Upstream summary: In ksh version 20120801, a flaw was found in the way it evaluates certain environment variables. An attacker could use this flaw to override or […]

Read more

Tags

AIX AlmaLinux Alpine Linux authentication authorization Backup Recovery Boot Startup Cloud Integration Common Problems Cpu Memory Database Debian Debian 11 Debian 12 Bookworm Debian 13 Trixie DNS Firewall Fix Prevention FreeBSD FreeBSD 12 FreeBSD 13 FreeBSD 14 FreeBSD 15 Kernel Drivers Logging Monitoring Lvm Raid NetBSD Networking openSUSE Operations Oracle Linux Oracle Linux 8 Oracle Linux 9 Package Management Performance Proxy Security Hardening SLES Storage Disk Systemd Services Tls Ssl Troubleshooting ubuntu VPN windows server
CHAT