Vulnerability Description
Heap-based buffer overflow in the string_vformat function in string.c in Exim before 4.70 allows remote attackers to execute arbitrary code via an SMTP session that includes two MAIL commands in conjunction with a large message containing crafted headers, leading to improper rejection logging.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Exim | Exim | < 4.70 |
| Opensuse | Opensuse | 11.1 |
| Debian | Debian Linux | 5.0 |
| Canonical | Ubuntu Linux | 6.06 |
Related Weaknesses (CWE)
References
- ftp://ftp.exim.org/pub/exim/ChangeLogs/ChangeLog-4.70Broken Link
- http://atmail.com/blog/2010/atmail-6204-now-available/Broken Link
- http://bugs.exim.org/show_bug.cgi?id=787Issue TrackingPatch
- http://git.exim.org/exim.git/commit/24c929a27415c7cfc7126c47e4cad39acf3efa6bMailing ListPatch
- http://lists.exim.org/lurker/message/20101210.164935.385e04d0.en.htmlMailing ListPatch
- http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00003.htmlMailing ListThird Party Advisory
- http://openwall.com/lists/oss-security/2010/12/10/1Mailing ListThird Party Advisory
- http://secunia.com/advisories/40019Broken LinkVendor Advisory
- http://secunia.com/advisories/42576Broken LinkVendor Advisory
- http://secunia.com/advisories/42586Broken LinkVendor Advisory
- http://secunia.com/advisories/42587Broken LinkVendor Advisory
- http://secunia.com/advisories/42589Broken LinkVendor Advisory
- http://www.cpanel.net/2010/12/exim-remote-memory-corruption-vulnerability-notifiBroken Link
- http://www.debian.org/security/2010/dsa-2131Mailing ListThird Party Advisory
- http://www.exim.org/lurker/message/20101207.215955.bb32d4f2.en.htmlExploitMailing List
FAQ
What is CVE-2010-4344?
CVE-2010-4344 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Heap-based buffer overflow in the string_vformat function in string.c in Exim before 4.70 allows remote attackers to execute arbitrary code via an SMTP session that includes two MAIL commands in conju...
How severe is CVE-2010-4344?
CVE-2010-4344 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2010-4344?
Check the references section above for vendor advisories and patch information. Affected products include: Exim Exim, Opensuse Opensuse, Debian Debian Linux, Canonical Ubuntu Linux.