Vulnerability Description
The open_log function in log.c in Exim 4.72 and earlier does not check the return value from (1) setuid or (2) setgid system calls, which allows local users to append log data to arbitrary files via a symlink attack.
CVSS Score
6.9
MEDIUM
AV:L/AC:M/Au:N/C:C/I:C/A:C
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Exim | Exim | <= 4.72 |
Related Weaknesses (CWE)
References
- ftp://ftp.exim.org/pub/exim/ChangeLogs/ChangeLog-4.74
- http://lists.exim.org/lurker/message/20110126.034702.4d69c278.en.htmlPatch
- http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00004.html
- http://osvdb.org/70696
- http://secunia.com/advisories/43101Vendor Advisory
- http://secunia.com/advisories/43128Vendor Advisory
- http://secunia.com/advisories/43243
- http://www.debian.org/security/2011/dsa-2154
- http://www.securityfocus.com/bid/46065
- http://www.ubuntu.com/usn/USN-1060-1
- http://www.vupen.com/english/advisories/2011/0224Vendor Advisory
- http://www.vupen.com/english/advisories/2011/0245Vendor Advisory
- http://www.vupen.com/english/advisories/2011/0364
- http://www.vupen.com/english/advisories/2011/0464
- https://exchange.xforce.ibmcloud.com/vulnerabilities/65028
FAQ
What is CVE-2011-0017?
CVE-2011-0017 is a vulnerability with a CVSS score of 6.9 (MEDIUM). The open_log function in log.c in Exim 4.72 and earlier does not check the return value from (1) setuid or (2) setgid system calls, which allows local users to append log data to arbitrary files via a...
How severe is CVE-2011-0017?
CVE-2011-0017 has been rated MEDIUM with a CVSS base score of 6.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-0017?
Check the references section above for vendor advisories and patch information. Affected products include: Exim Exim.