An uncontrolled resource consumption flaw has been discovered in Exim before 4.89.1. The use of multiple "-p" command line arguments which are malloc()'ed and never free()'ed results in leaking memory. While Exim itself is not vulnerable to privilege escalation, this particular flaw can be used by the stackguard vulnerability to achieve privilege escalation.
An uncontrolled resource consumption flaw has been discovered in Exim before 4.89.1. The use of multiple "-p" command line arguments which are malloc()'ed and never free()'ed results in leaking memory. While Exim itself is not vulnerable to privilege escalation, this particular flaw can be used by the stackguard vulnerability to achieve privilege escalation.
https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt https://git.exim.org/exim.git/commitdiff/65e061b76867a9ea7aeeb535341b790b90ae6c21 https://access.redhat.com/security/vulnerabilities/stackguard
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