Critical severity · published Dec 14, 2010
CVE-2010-4344
Exim Heap-Based Buffer Overflow Vulnerability
In wildKEV
9.8
CVSS
71.7%
EPSS
Yes
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)71.7% · higher than 99% of CVEs
Exploited in the wildYes
CISA KEVListed Mar 25, 2022
Federal remediation dueApr 15, 2022
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
5.0 · source: NVD
EX
Exim · Exim
before 4.70 · source: NVD, KEV
OP
Opensuse · Opensuse
11.1; 11.2; 11.3 · source: NVD
UL
Ubuntu Linux · Canonical
6.06; 8.04; 9.10 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2010-4344
CVE.org
https://www.cve.org/CVERecord?id=CVE-2010-4344
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
vendor-advisory
http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00003.html
mailing-list
http://www.exim.org/lurker/message/20101207.215955.bb32d4f2.en.html
x_refsource_CONFIRM
http://bugs.exim.org/show_bug.cgi?id=787
vdb-entry
http://www.securitytracker.com/id?1024858
vendor-advisory
http://www.redhat.com/support/errata/RHSA-2010-0970.html
vdb-entry
http://www.vupen.com/english/advisories/2010/3186
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