Scientific Linux Security Update : mailx on SL6.x, SL7.x i386/x86_64
High Nessus Plugin ID 80075
SynopsisThe remote Scientific Linux host is missing one or more security updates.
DescriptionA flaw was found in the way mailx handled the parsing of email addresses. A syntactically valid email address could allow a local attacker to cause mailx to execute arbitrary shell commands through shell meta-characters and the direct command execution functionality.
Note: Applications using mailx to send email to addresses obtained from untrusted sources will still remain vulnerable to other attacks if they accept email addresses which start with '-' (so that they can be confused with mailx options). To counteract this issue, this update also introduces the '--' option, which will treat the remaining command line arguments as email addresses.
SolutionUpdate the affected mailx and / or mailx-debuginfo packages.