GLSA-201709-19 : Exim: Local privilege escalation (Stack Clash)
Low Nessus Plugin ID 103447
SynopsisThe remote Gentoo host is missing one or more security-related patches.
DescriptionThe remote host is affected by the vulnerability described in GLSA-201709-19 (Exim: Local privilege escalation)
Exim supports the use of multiple “-p” command line arguments causing a memory leak. This could lead to a stack-clash in user-space and as result the attacker can, “clash” or “smash” the stack or another memory region, or “jump” over the stack guard-page.
A local attacker could obtain root privileges.
There is no known workaround at this time.
SolutionAll Exim users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=mail-mta/exim-4.89-r1'