Logging Monitoring

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

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

  • February 9, 2023
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 9 February 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-0871 CVE-2012-1101 CVE-2012-1174 CVE-2013-4327 CVE-2013-4391 CVE-2013-4392 CVE-2013-4393 CVE-2013-4394  +12 more Upstream summary: The session_link_x11_socket function in login/logind-session.c in systemd-logind in systemd, possibly 37 and earlier, allows local users […]

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How to Profile Application Performance with perf on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Profile Application Performance with perf on RHEL 8

  • February 9, 2023
  • Linux
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The perf tool is a powerful Linux profiling framework built directly into the kernel, capable of sampling CPU performance counters, tracing system calls, and generating flame graphs that reveal exactly where an application spends its time. On RHEL 8, perf is packaged in the standard repositories and integrates with the kernel’s built-in performance monitoring units […]

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Common Problems 114620

RHEL 9 Performance Drop Due to THP and Swappiness Misconfiguration

  • February 8, 2023
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 8 February 2023 📖 ~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 […]

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IBM AIX 7.2 — CVE-2023-33846 — xss — patch and remediation guide — diagnosis and fix on IBM AIX 7.2

IBM AIX 7.2 — CVE-2023-33846 — xss — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 8 February 2023 Affected versions: IBM AIX 7.2 📖 ~4 min read  •  Source: NVD CVE-2023-33846, IBM Support Bulletin CVE: CVE-2023-33846 NVD summary: IBM TXSeries for Multiplatforms 8.1, 8.2, 9.1, CICS TX Standard, 11.1, CICS TX Advanced 10.1, and 11.1 is vulnerable to cross-site scripting. This vulnerability […]

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IBM AIX 7.2 — CVE-2022-34361 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.2

IBM AIX 7.2 — CVE-2022-34361 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 8 February 2023 Affected versions: IBM AIX 7.2 📖 ~4 min read  •  Source: NVD CVE-2022-34361, IBM Support Bulletin CVE: CVE-2022-34361 NVD summary: IBM Sterling Secure Proxy 6.0.3 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: […]

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Windows Server 2022 — KB5029655 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2022

Windows Server 2022 — KB5029655 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Windows Server 2022 📖 ~4 min read  •  Source: Microsoft KB5029655 • MSRC update-guide entry Related CVEs: CVE-2023-36873 CVE-2023-36899 Affected components: Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022 Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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FreeBSD 12 — tailscale — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — tailscale — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • February 8, 2023
  • BSD
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🟢 Low   ⏱ 5–15 min  Last verified: 8 February 2023 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: tailscale — Insufficient inbound packet filtering in subnet routers and exit nodes Related CVEs: CVE-2022-41925 CVE-2023-28436 Upstream summary: Tailscale team reports: In Tailscale versions earlier than 1.66.0, exit nodes, subnet […]

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Alpine Linux edge — fribidi — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — fribidi — multiple vulnerabilities (4 CVEs) — patch and remediation guide

  • February 8, 2023
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 1.0.7-r1 📖 ~4 min read  •  Source: Alpine secdb entry — fribidi 1.0.7-r1 Related CVEs: CVE-2019-18397 CVE-2022-25308 CVE-2022-25309 CVE-2022-25310 Upstream summary: Alpine main repository for vedge ships fribidi 1.0.7-r1 which addresses CVE-2019-18397. Table of contents Symptom […]

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Debian 11 — gnome-gmail — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — gnome-gmail — vulnerability — patch and remediation guide

  • February 8, 2023
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 8 February 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-24904 Upstream summary: An issue was discovered in attach parameter in GNOME Gmail version 2.5.4, allows remote attackers to gain sensitive information via crafted "mailto" link. Table of […]

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

Debian 11 — profanity — vulnerability — patch and remediation guide

  • February 8, 2023
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 8 February 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-5592 Upstream summary: An incorrect implementation of "XEP-0280: Message Carbons" in multiple XMPP clients allows a remote attacker to impersonate any user, including contacts, in the vulnerable application's […]

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