CVE-2010-4344

exim: remote code execution flaw

Published Dec 14, 2010 CVSS 3.1 · 9.8 Critical EPSS 71.7% KEV · Listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Debian DSA Debian DSA DSA-2131-1 New exim4 packages fix remote code execution
Ubuntu USN Ubuntu USN USN-1032-1 Exim vulnerability
References
Link Providers
ftp://ftp.exim.org/pub/exim/ChangeLogs/ChangeLog-4.70 cve-icon cve-icon
http://atmail.com/blog/2010/atmail-6204-now-available/ cve-icon cve-icon
http://bugs.exim.org/show_bug.cgi?id=787 cve-icon cve-icon
http://git.exim.org/exim.git/commit/24c929a27415c7cfc7126c47e4cad39acf3efa6b cve-icon cve-icon
http://lists.exim.org/lurker/message/20101210.164935.385e04d0.en.html cve-icon cve-icon
http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00003.html cve-icon cve-icon
http://openwall.com/lists/oss-security/2010/12/10/1 cve-icon cve-icon
http://secunia.com/advisories/40019 cve-icon cve-icon
http://secunia.com/advisories/42576 cve-icon cve-icon
http://secunia.com/advisories/42586 cve-icon cve-icon
http://secunia.com/advisories/42587 cve-icon cve-icon
http://secunia.com/advisories/42589 cve-icon cve-icon
http://www.cpanel.net/2010/12/exim-remote-memory-corruption-vulnerability-notification-cve-2010-4344.html cve-icon cve-icon
http://www.debian.org/security/2010/dsa-2131 cve-icon cve-icon
http://www.exim.org/lurker/message/20101207.215955.bb32d4f2.en.html cve-icon cve-icon
http://www.kb.cert.org/vuls/id/682457 cve-icon cve-icon
http://www.metasploit.com/modules/exploit/unix/smtp/exim4_string_format cve-icon cve-icon
http://www.openwall.com/lists/oss-security/2021/05/04/7 cve-icon cve-icon
http://www.osvdb.org/69685 cve-icon cve-icon
http://www.redhat.com/support/errata/RHSA-2010-0970.html cve-icon cve-icon
http://www.securityfocus.com/archive/1/515172/100/0/threaded cve-icon cve-icon
http://www.securityfocus.com/bid/45308 cve-icon cve-icon
http://www.securitytracker.com/id?1024858 cve-icon cve-icon
http://www.theregister.co.uk/2010/12/11/exim_code_execution_peril/ cve-icon cve-icon
http://www.ubuntu.com/usn/USN-1032-1 cve-icon cve-icon
http://www.vupen.com/english/advisories/2010/3171 cve-icon cve-icon
http://www.vupen.com/english/advisories/2010/3172 cve-icon cve-icon
http://www.vupen.com/english/advisories/2010/3181 cve-icon cve-icon
http://www.vupen.com/english/advisories/2010/3186 cve-icon cve-icon
http://www.vupen.com/english/advisories/2010/3204 cve-icon cve-icon
http://www.vupen.com/english/advisories/2010/3246 cve-icon cve-icon
http://www.vupen.com/english/advisories/2010/3317 cve-icon cve-icon
https://bugzilla.redhat.com/show_bug.cgi?id=661756 cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2010-4344 cve-icon
https://www.cisa.gov/known-exploited-vulnerabilities-catalog cve-icon
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2010-4344 cve-icon cve-icon
https://www.cve.org/CVERecord?id=CVE-2010-4344 cve-icon
Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Oct 22, 2025, 12:05 AM
Reserved
Nov 30, 2010, 12:00 AM
Status
Analyzed
Published
Dec 14, 2010, 4:00 PM
Modified
Jun 16, 2026, 11:24 PM
Severity
Critical
Public date
Dec 7, 2010, 12:00 AM