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Debian 9 Stretch DSA-4134-1 Moderate: Util-Linux Privilege Escalation

Bjorn Bosselmann discovered that the umount bash completion from util-linux does not properly handle embedded shell commands in a mountpoint name. An attacker with rights to mount filesystems can take advantage of this flaw for privilege escalation if a user (in particular . - ------------------------------------------------------------------------- Debian Security Advisory DSA-4134-1 This email address is being protected from spambots. You need JavaScript enabled to view it. https://www.debian.org/security/ Salvatore Bonaccorso March 10, 2018 https://www.debian.org/security/faq - ------------------------------------------------------------------------- Package : util-linux CVE ID : CVE-2018-7738 Debian Bug : 892179 Bjorn Bosselmann discovered that the umount bash completion from util-linux does not properly handle embedded shell commands in a mountpoint name. An attacker with rights to mount filesystems can take advantage of this flaw for privilege escalation if a user (in particular root) is tricked into using the umount completion while a specially crafted mount is present. For the stable distribution (stretch), this problem has been fixed in version 2.29.2-1+deb9u1. We recommend that you upgrade your util-linux packages. For the detailed security status of util-linux please refer to its security tracker page at: https://security-tracker.debian.org/tracker/source-package/util-linux Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/ Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it. . Stay informed on the latest Debian security announcement regarding util-linux, which addresses potential privilege escalation vulnerabilities linked to integrated command executions.. Debian Security Advisory, Util-Linux Update, Privilege Escalation, Bash Completion Issue, Security Update. . Severity: Important. LinuxSecurity.com Team

Mar 10, 2018 •Important Debian