🟢 Low ⏱ 5–15 min Last verified: 10 July 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2015-0886 Upstream summary: Integer overflow in the crypt_raw method in the key-stretching implementation in jBCrypt before 0.4 makes it easier for remote attackers to determine cleartext values of […]
🟠 High ⏱ 15–60 min Last verified: 10 July 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2007-1869 CVE-2007-1870 CVE-2007-3946 CVE-2007-3947 CVE-2007-3948 CVE-2007-3949 CVE-2007-3950 CVE-2007-4727 +12 more Upstream summary: lighttpd 1.4.12 and 1.4.13 allows remote attackers to cause a denial of service (cpu and resource […]
Introduction Deploying configure saltstack on debian 11 on a Debian 11 Bullseye machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before you begin, ensure […]
🟢 Low ⏱ 5–15 min Last verified: 9 July 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2003-0173 CVE-2007-2654 Upstream summary: xfsdq in xfsdump does not create quota information files securely, which allows local users to gain root privileges. Table of contents Symptom & Impact […]
🟢 Low ⏱ 5–15 min Last verified: 9 July 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2008-3971 Upstream summary: Heap-based buffer overflow in the open_man_file function in callbacks.c in gmanedit 0.4.1 allows remote attackers to execute arbitrary code via a crafted man page, which […]
🟢 Low ⏱ 5–15 min Last verified: 9 July 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2015-8378 Upstream summary: In KeePassX before 0.4.4, a cleartext copy of password data is created upon a cancel of an XML export action. This allows context-dependent attackers to […]
🟢 Low ⏱ 5–15 min Last verified: 9 July 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2012-6303 Upstream summary: Heap-based buffer overflow in the GetWavHeader function in generic/jkSoundFile.c in the Snack Sound Toolkit, as used in WaveSurfer 1.8.8p4, allows remote attackers to cause a […]
Introduction Debian 11 Bullseye is built around the ethos of stability and free software. Setting up harden shared memory on debian 11 on Bullseye leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bullseye freeze. Follow each step carefully and the […]
🟡 Medium ⏱ 10–30 min Last verified: 8 July 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2005-1270 CVE-2008-4982 CVE-2017-7480 Upstream summary: The (1) check_update.sh and (2) rkhunter script in Rootkit Hunter before 1.2.3-r1 create temporary files with predictable file names, which allows local users […]
Fail2ban is a service that can be run on your server to dynamically block clients that repeatedly fail to authenticate correctly with your services . This can help mitigate the affect of brute force attacks and illegitimate users of your services. In this guide, we’ll demonstrate how to install and configure fail2ban to protect SSH on a Debian 11 server.
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