Linux

Ubuntu 18.04 — flatpak — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — flatpak — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 10 June 2022 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5191-1 Related CVEs: CVE-2021-41133 CVE-2021-21381 CVE-2021-21261 Upstream summary: It was discovered that Flatpak incorrectly handled certain AF_UNIX sockets. An attacker could use this to specially craft a Flatpak application that […]

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CentOS Stream 9 — gcc — vulnerability — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — gcc — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 10 June 2022 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2025:1346 Related CVEs: CVE-2020-11023 Upstream summary: The gcc packages provide compilers for C, C++, Java, Fortran, Objective C, and Ada 95 GNU, as well as related support libraries. Security Fix(es): * […]

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Oracle Linux 8 — thunderbird — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — thunderbird — vulnerability — patch and remediation guide (ELSA-2021-3499)

🟠 High   ⏱ 15–60 min  Last verified: 10 June 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-3499 Related CVEs: CVE-2021-38493 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Arch Linux — lynx — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — lynx — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202108-9 Related CVEs: CVE-2021-38165 Upstream summary: Type: information disclosure. Status: Fixed. Affected: 2.8.9-3. Fixed in: 2.8.9-4. Group: AVG-2261. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis […]

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Cómo editar el archivo sudoers — step-by-step Linux tutorial on Progressive Robot

Cómo editar el archivo sudoers

El comando sudo es útil para ejecutar comandos con privilegios normalmente fuera del alcance de su usuario. Esta guía explicará cómo editar el archivo de configuración para personalizar el funcionamiento de sudo.

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openSUSE Tumbleweed — logrotate — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — logrotate — multiple vulnerabilities (4 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-CU-2022:2149-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-1348 CVE-2011-1098 CVE-2011-1154 CVE-2011-1155 Upstream summary: A vulnerability was found in logrotate in how the state file is created. The state file is used to […]

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Amazon Linux 2 — grilo — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — grilo — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2023-2306 Related CVEs: CVE-2016-20011 CVE-2021-39365 Upstream summary: In GNOME grilo though 0.3.13, grl-net-wc.c does not enable TLS certificate verification on the SoupSessionAsync objects it creates, leaving users vulnerable to network […]

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Gentoo Linux — media-video/atomicparsley-wez — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — media-video/atomicparsley-wez — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202305-01 Related CVEs: CVE-2021-37231 CVE-2021-37232 Upstream summary: Multiple vulnerabilities have been discovered in AtomicParsley. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment & Reproduction […]

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

Debian 11 — goffice — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 June 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-2491 Upstream summary: Integer overflow in pcre_compile.c in Perl Compatible Regular Expressions (PCRE) before 6.2, as used in multiple products such as Python, Ethereal, and PHP, allows attackers […]

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Debian 11 — libemail-address-list-perl — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libemail-address-list-perl — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 June 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-1474 CVE-2018-18898 Upstream summary: Algorithmic complexity vulnerability in Email::Address::List before 0.02, as used in RT 4.2.0 through 4.2.2, allows remote attackers to cause a denial of service (CPU […]

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