Linux

How to Sync Time with Chrony on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Sync Time with Chrony on RHEL 9

Accurate time synchronization is not optional on a server — it is a hard requirement. TLS certificate validation fails when the clock is wrong by more than a few minutes. Kerberos authentication rejects tickets with a clock skew over 5 minutes. Cron jobs fire at the wrong time. Log correlation across multiple servers becomes impossible […]

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openSUSE Leap 15.5 — vorbis-tools — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.5

openSUSE Leap 15.5 — vorbis-tools — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.5 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2023:4218-1 (see also SUSE bugzilla) Related CVEs: CVE-2023-43361 Upstream summary: Buffer Overflow vulnerability in Vorbis-tools v.1.4.2 allows a local attacker to execute arbitrary code and cause a denial of service during […]

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Oracle Linux 9 — vim — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — vim — vulnerability — patch and remediation guide (ELSA-2022-5242)

🟡 Medium   ⏱ 10–30 min  Last verified: 26 December 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-5242 Related CVEs: CVE-2022-1621 CVE-2022-1154 CVE-2022-0943 CVE-2022-1629 CVE-2022-0554 CVE-2022-1420 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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openSUSE Leap 15.5 — libgif7 — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.5

openSUSE Leap 15.5 — libgif7 — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.5 📖 ~4 min read  •  Source: SUSE advisory RHSA-2024:8117 (see also SUSE bugzilla) Related CVEs: CVE-2023-48161 CVE-2021-40633 CVE-2022-28506 Upstream summary: Buffer Overflow vulnerability in GifLib Project GifLib v.5.2.1 allows a local attacker to obtain sensitive information via the DumpSCreen2RGB […]

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AlmaLinux 8 — ncurses — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — ncurses — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2023:5249 Related CVEs: CVE-2023-29491 CVE-2019-17594 CVE-2019-17595 Upstream summary: The ncurses (new curses) library routines are a terminal-independent method of updating character screens with reasonable optimization. The ncurses packages contain support utilities including […]

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Debian 12 — ibutils — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — ibutils — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 December 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-2561 Upstream summary: OpenFabrics ibutils 1.5.7 allows local users to overwrite arbitrary files via a symlink attack on (1) ibdiagnet.db, (2) ibdiagnet.fdbs, (3) ibdiagnet_ibis.log, (4) ibdiagnet.log, (5) ibdiagnet.lst, […]

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Debian 12 — milkytracker — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — milkytracker — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 December 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-14464 CVE-2019-14496 CVE-2019-14497 CVE-2020-15569 CVE-2022-34927 Upstream summary: XMFile::read in XMFile.cpp in milkyplay in MilkyTracker 1.02.00 has a heap-based buffer overflow. Table of contents Symptom & Impact Environment & […]

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openSUSE Tumbleweed — libQt5Svg5 — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — libQt5Svg5 — multiple vulnerabilities (3 CVEs) — 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-2023:2967-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-45930 CVE-2023-32573 CVE-2021-3481 Upstream summary: Qt SVG in Qt 5.0.0 through 5.15.2 and 6.0.0 through 6.2.1 has an out-of-bounds write in QtPrivate::QCommonArrayOps<QPainterPath::Element>::growAppend (called from QPainterPath::addPath […]

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Debian 12 — s3d — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — s3d — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 December 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-6876 CVE-2014-1226 Upstream summary: The (1) pty_init_terminal and (2) pipe_init_terminal functions in main.c in s3dvt 0.2.2 and earlier allows local users to gain privileges by leveraging setuid permissions […]

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Debian 12 — glade — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — glade — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 December 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-36774 Upstream summary: plugins/gtk+/glade-gtk-box.c in GNOME Glade before 3.38.1 and 3.39.x before 3.40.0 mishandles widget rebuilding for GladeGtkBox, leading to a denial of service (application crash). Table of […]

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