May 2021 - Page 27 of 69

SLES 12 — libtirpc3 — vulnerability — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — libtirpc3 — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2022:2025-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-46828 Upstream summary: In libtirpc before 1.3.3rc1, remote attackers could exhaust the file descriptors of a process that uses libtirpc because idle TCP connections are […]

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How to Schedule Automated Tasks with cron and anacron on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Schedule Automated Tasks with cron and anacron on RHEL 7

How to Schedule Automated Tasks with cron and anacron on RHEL 7 Automation is at the heart of effective Linux system administration. Red Hat Enterprise Linux 7 provides two complementary scheduling systems: cron for tasks that need to run at precise times on continuously running servers, and anacron for tasks that must eventually run on […]

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AlmaLinux 8 — spacewalk-oscap — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — spacewalk-oscap — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2019:3355 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 […]

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AlmaLinux 8 — mcstrans — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — mcstrans — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2020:1839 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 […]

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Oracle Linux 8 — /var/run/rhnsd.pid file not readable after starting Spacewalk daemon — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — /var/run/rhnsd.pid file not readable after starting Spacewalk daemon

🟠 High   ⏱ 5–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: Oracle Bug 29531930 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 […]

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AlmaLinux 8 — libgit2 — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — libgit2 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2020:4773 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 […]

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Alpine Linux edge — re2c — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — re2c — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 1.3-r1 📖 ~4 min read  •  Source: Alpine secdb entry — re2c 1.3-r1 Related CVEs: CVE-2020-11958 Upstream summary: Alpine main repository for vedge ships re2c 1.3-r1 which addresses CVE-2020-11958. Table of contents Symptom & Impact Environment […]

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openSUSE Tumbleweed — xtrans — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — xtrans — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2023:3189-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-25697 Upstream summary: A privilege escalation flaw was found in the Xorg-x11-server due to a lack of authentication for X11 clients. This flaw allows an […]

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