CVE-2010-4344: Exim Heap-Based Buffer Overflow Vulnerability
Critical · CVSS 9.8 (CVSS 3.1)KEV known exploitedEPSS 71.7%, 99th percentilePublished Updated Assigner: redhat
In CISA’s Known Exploited Vulnerabilities catalog: Exim Heap-Based Buffer Overflow Vulnerability.
Added , federal remediation due . Known ransomware use: Unknown.
Required action: Apply updates per vendor instructions.
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.
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
Exim: Exim
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- atmail.com/blog/2010/atmail-6204-now-available/ (opens in new tab)
- bugs.exim.org/show_bug.cgi (opens in new tab)
- git.exim.org/exim.git/commit/24c929a27415c7cfc7126c47e4cad39acf3efa6b (opens in new tab)
- lists.exim.org/lurker/message/20101210.164935.385e04d0.en.html (opens in new tab)
- lists.opensuse.org/opensuse-security-announce/2010-12/msg00003.html (opens in new tab)
- openwall.com/lists/oss-security/2010/12/10/1 (opens in new tab)
- bugzilla.redhat.com/show_bug.cgi (opens in new tab)
- secunia.com/advisories/40019 (opens in new tab)
- secunia.com/advisories/42576 (opens in new tab)
- secunia.com/advisories/42586 (opens in new tab)
- secunia.com/advisories/42587 (opens in new tab)
- secunia.com/advisories/42589 (opens in new tab)
- www.cpanel.net/2010/12/exim-remote-memory-corruption-vulnerability-notification-cve-… (opens in new tab)
- www.debian.org/security/2010/dsa-2131 (opens in new tab)
- www.exim.org/lurker/message/20101207.215955.bb32d4f2.en.html (opens in new tab)
- www.kb.cert.org/vuls/id/682457 (opens in new tab)
- www.metasploit.com/modules/exploit/unix/smtp/exim4_string_format (opens in new tab)
- www.openwall.com/lists/oss-security/2021/05/04/7 (opens in new tab)
- www.osvdb.org/69685 (opens in new tab)
- www.redhat.com/support/errata/RHSA-2010-0970.html (opens in new tab)
- www.securityfocus.com/archive/1/515172/100/0/threaded (opens in new tab)
- www.securityfocus.com/bid/45308 (opens in new tab)
- www.securitytracker.com/id (opens in new tab)
- www.theregister.co.uk/2010/12/11/exim_code_execution_peril/ (opens in new tab)
- www.ubuntu.com/usn/USN-1032-1 (opens in new tab)
- www.vupen.com/english/advisories/2010/3171 (opens in new tab)
- www.vupen.com/english/advisories/2010/3172 (opens in new tab)
- www.vupen.com/english/advisories/2010/3181 (opens in new tab)
- www.vupen.com/english/advisories/2010/3186 (opens in new tab)
- www.vupen.com/english/advisories/2010/3204 (opens in new tab)
- www.vupen.com/english/advisories/2010/3246 (opens in new tab)
- www.vupen.com/english/advisories/2010/3317 (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)