CVE-2010-4344

Known Exploited Public Exploit

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 57.47% Top 5%
KEV Since 
Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory debian.org Vendor Advisory secunia.com Vendor Advisory secunia.com Vendor Advisory secunia.com Vendor Advisory secunia.com Vendor Advisory secunia.com Vendor Advisory vupen.com Vendor Advisory vupen.com Vendor Advisory vupen.com Vendor Advisory vupen.com Vendor Advisory vupen.com Vendor Advisory vupen.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00003.html vendor advisory mailing list third party advisory
http://www.exim.org/lurker/message/20101207.215955.bb32d4f2.en.html exploit mailing list
http://bugs.exim.org/show_bug.cgi?id=787 patch issue tracking
http://www.securitytracker.com/id?1024858 broken link third party advisory vdb entry
http://www.redhat.com/support/errata/RHSA-2010-0970.html vendor advisory broken link
http://www.vupen.com/english/advisories/2010/3186 vendor advisory broken link vdb entry
http://www.securityfocus.com/bid/45308 broken link third party advisory vdb entry
http://www.metasploit.com/modules/exploit/unix/smtp/exim4_string_format third party advisory
http://atmail.com/blog/2010/atmail-6204-now-available/ broken link
http://secunia.com/advisories/42576 vendor advisory broken link third party advisory
http://secunia.com/advisories/42587 vendor advisory broken link third party advisory
https://bugzilla.redhat.com/show_bug.cgi?id=661756 issue tracking exploit
http://lists.exim.org/lurker/message/20101210.164935.385e04d0.en.html patch mailing list
http://secunia.com/advisories/40019 vendor advisory broken link third party advisory
http://www.vupen.com/english/advisories/2010/3172 vendor advisory broken link vdb entry
http://www.kb.cert.org/vuls/id/682457 third party advisory us government resource
http://www.vupen.com/english/advisories/2010/3181 vendor advisory broken link vdb entry
http://secunia.com/advisories/42586 vendor advisory broken link third party advisory
http://www.vupen.com/english/advisories/2010/3317 vdb entry broken link
http://www.ubuntu.com/usn/USN-1032-1 third party advisory vendor advisory
http://www.cpanel.net/2010/12/exim-remote-memory-corruption-vulnerability-notification-cve-2010-4344.html broken link
http://www.osvdb.org/69685 patch broken link vdb entry exploit
http://www.securityfocus.com/archive/1/515172/100/0/threaded broken link mailing list third party advisory vdb entry
http://www.theregister.co.uk/2010/12/11/exim_code_execution_peril/ press/media coverage
http://www.vupen.com/english/advisories/2010/3246 vendor advisory broken link vdb entry
ftp://ftp.exim.org/pub/exim/ChangeLogs/ChangeLog-4.70 broken link
http://www.vupen.com/english/advisories/2010/3204 vendor advisory broken link vdb entry
http://git.exim.org/exim.git/commit/24c929a27415c7cfc7126c47e4cad39acf3efa6b patch mailing list
http://www.debian.org/security/2010/dsa-2131 vendor advisory mailing list third party advisory
http://www.vupen.com/english/advisories/2010/3171 vendor advisory broken link vdb entry
http://secunia.com/advisories/42589 vendor advisory broken link third party advisory
http://openwall.com/lists/oss-security/2010/12/10/1 third party advisory mailing list
http://www.openwall.com/lists/oss-security/2021/05/04/7 exploit mailing list

Frequently Asked Questions

What is the severity of CVE-2010-4344?
CVE-2010-4344 has been scored as a critical severity vulnerability.
How to fix CVE-2010-4344?
To fix CVE-2010-4344, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2010-4344 being actively exploited in the wild?
It is confirmed that CVE-2010-4344 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~57% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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