Debian 11

How to Install PHP 8.1 CLI on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Install PHP 8.1 CLI on Debian 11

Introduction This guide explains how to Install PHP 8.1 CLI on Debian 11 on Debian 11 Bullseye. Debian Bullseye uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 11 install with the […]

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Debian 11 — shorewall — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — shorewall — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 30 June 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2004-0647 CVE-2005-2317 Upstream summary: shorewall 1.4.10c and earlier, and 2.0.x before 2.0.3a, allows local users to overwrite arbitrary files via a symlink attack on the chains-$$ temporary file. […]

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Debian 11 — pupnp-1.8 — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — pupnp-1.8 — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 30 June 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-12695 CVE-2020-13848 CVE-2021-28302 CVE-2021-29462 Upstream summary: The Open Connectivity Foundation UPnP specification before 2020-04-17 does not forbid the acceptance of a subscription request with a delivery URL on […]

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How To Install Suricata on Debian 11 — step-by-step Linux tutorial on Progressive Robot

How To Install Suricata on Debian 11

Suricata is a Network Security Monitoring (NSM) tool that uses sets of community created and user defined signatures (also referred to as rules) to examine and process network traffic. Suricata can generate log events, trigger alerts, and drop traffic…

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How to Configure Postfix Mail Server on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Configure Postfix Mail Server on Debian 11

Introduction This guide explains how to Configure Postfix Mail Server on Debian 11 on Debian 11 Bullseye. Debian Bullseye uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 11 install with the […]

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

Debian 11 — scrollz — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 June 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-29376 Upstream summary: ircII before 20210314 allows remote attackers to cause a denial of service (segmentation fault and client crash, disconnecting the victim from an IRC server) via […]

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Debian 11 — libnids — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libnids — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 June 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2003-0850 CVE-2010-0751 Upstream summary: The TCP reassembly functionality in libnids before 1.18 allows remote attackers to cause "memory corruption" and possibly execute arbitrary code via "overlarge TCP packets." […]

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Debian 11 — php-imagick — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — php-imagick — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 June 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-11037 Upstream summary: In PHP imagick extension in versions between 3.3.0 and 3.4.4, writing to an array of values in ImagickKernel::fromMatrix() function did not check that the address […]

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

Debian 11 — gummi — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 June 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-7758 Upstream summary: Gummi 0.6.5 allows local users to write to arbitrary files via a symlink attack on a temporary dot file that uses the name of an […]

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