Solution
Please Install the Updated Packages.
Insight
Postfix is a Mail Transport Agent (MTA), supporting LDAP, SMTP AUTH (SASL), and TLS.
A flaw was found in the way Postfix dereferences symbolic links. If a local user has write access to a mail spool directory with no root mailbox, it may be possible for them to append arbitrary data to files that root has write permission to. (CVE-2008-2936)
Red Hat would like to thank Sebastian Krahmer for responsibly disclosing this issue.
All users of postfix should upgrade to these updated packages, which contain a backported patch that resolves this issue.
Affected
postfix on Red Hat Enterprise Linux AS version 3,
Red Hat Enterprise Linux ES version 3,
Red Hat Enterprise Linux WS version 3,
Red Hat Enterprise Linux AS version 4,
Red Hat Enterprise Linux ES version 4,
Red Hat Enterprise Linux WS version 4,
Red Hat Enterprise Linux (v. 5 server)
References
Updated on 2015-03-25
Severity
Classification
-
CVE CVE-2008-2936 -
CVSS Base Score: 6.2
AV:L/AC:H/Au:N/C:C/I:C/A:C
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