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openSUSE Tumbleweed — haproxy — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — haproxy — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • May 20, 2026
  • Linux
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🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2023:1459-1 (see also SUSE bugzilla) Related CVEs: CVE-2023-25725 CVE-2026-26081 CVE-2024-45506 CVE-2018-20103 CVE-2018-20615 CVE-2019-14241 CVE-2020-11100 CVE-2021-39240  +12 more Upstream summary: HAProxy before 2.7.3 may allow a bypass of access control because HTTP/1 headers […]

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Debian 13 — shadow — multiple vulnerabilities (19 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — shadow — multiple vulnerabilities (19 CVEs) — patch and remediation guide

  • May 20, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 20 May 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2004-1001 CVE-2005-4890 CVE-2006-1174 CVE-2006-1376 CVE-2006-1844 CVE-2006-3378 CVE-2007-5686 CVE-2008-5394  +11 more Upstream summary: Unknown vulnerability in the passwd_check function in Shadow 4.0.4.1, and possibly other versions before 4.0.5, allows […]

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How to Set Up Yubikey Authentication on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Set Up Yubikey Authentication on FreeBSD 15

Introduction How to Set Up Yubikey Authentication on FreeBSD 15 is a core administration task for any FreeBSD 15 server operator. FreeBSD 15 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet […]

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Debian 13 — sharutils — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — sharutils — multiple vulnerabilities (4 CVEs) — patch and remediation guide

  • May 20, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 20 May 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2004-1772 CVE-2004-1773 CVE-2005-0990 CVE-2018-1000097 Upstream summary: Stack-based buffer overflow in shar in GNU sharutils 4.2.1 allows local users to execute arbitrary code via a long -o command line […]

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

Debian 12 — harfbuzz — multiple vulnerabilities (6 CVEs) — patch and remediation guide

  • May 20, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 20 May 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-8947 CVE-2015-9274 CVE-2016-2052 CVE-2022-33068 CVE-2023-25193 CVE-2026-22693 Upstream summary: hb-ot-layout-gpos-table.hh in HarfBuzz before 1.0.5 allows remote attackers to cause a denial of service (buffer over-read) or possibly have unspecified […]

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openSUSE Leap 15.6 — cosign — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.6

openSUSE Leap 15.6 — cosign — multiple vulnerabilities (9 CVEs) — patch and remediation guide

  • May 20, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.6 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2026:0757-1 (see also SUSE bugzilla) Related CVEs: CVE-2026-24122 CVE-2026-26958 CVE-2026-24137 CVE-2026-23991 CVE-2026-23992 CVE-2026-22772 CVE-2026-22703 CVE-2024-29902  +1 more Upstream summary: Cosign provides code signing and transparency for containers and binaries. In versions […]

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Debian 13 — dbus — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — dbus — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • May 20, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 20 May 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-0201 CVE-2006-6107 CVE-2008-0595 CVE-2008-3834 CVE-2008-4311 CVE-2009-1189 CVE-2010-4352 CVE-2011-2200  +12 more Upstream summary: D-BUS (dbus) before 0.22 does not properly restrict access to a socket, if the socket address […]

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

Debian 11 — python-dotenv — vulnerability — patch and remediation guide

  • May 20, 2026
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 20 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2026-28684 Upstream summary: python-dotenv reads key-value pairs from a .env file and can set them as environment variables. Prior to version 1.2.2, `set_key()` and `unset_key()` in python-dotenv follow […]

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Common Problems 114034

RHEL 10 – rsyslog Queue Backlog Causes Log Loss Risk – Throughput Tuning

  • May 20, 2026
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: RHEL 10.0 RHEL 10.1 📖 ~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 & Hardening Related […]

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How to Configure ACLs on UFS File Systems on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Configure ACLs on UFS File Systems on FreeBSD 15

Introduction How to Configure ACLs on UFS File Systems on FreeBSD 15 is a core administration task for any FreeBSD 15 server operator. FreeBSD 15 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf […]

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