CVE-2017-16943

The receive_msg function in receive.c in the SMTP daemon in Exim 4.88 and 4.89 allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free) via vectors involving BDAT commands.

Score

CVSS 3.0 9.8 Critical

Status

Modified - cve@mitre.org

Published

2017-11-25

Last modified

2024-08-05

Weaknesses

CWE-416

Affected products

• Debian Linux (Debian)
• Exim (Exim)

References

• http://openwall.com/lists/oss-security/2017/11/25/1
• http://openwall.com/lists/oss-security/2017/11/25/2
• http://openwall.com/lists/oss-security/2017/11/25/3
• http://www.openwall.com/lists/oss-security/2021/05/04/7
• http://www.securitytracker.com/id/1039872
• https://bugs.exim.org/show_bug.cgi?id=2199
• https://git.exim.org/exim.git/commit/4090d62a4b25782129cc1643596dc2f6e8f63bde
• https://git.exim.org/exim.git/commitdiff/4e6ae6235c68de243b1c2419027472d7659aa2b4
• https://github.com/LetUsFsck/PoC-Exploit-Mirror/tree/master/CVE-2017-16944
• https://lists.exim.org/lurker/message/20171125.034842.d1d75cac.en.html
• https://www.debian.org/security/2017/dsa-4053