CVE-2017-16943

CRITICAL 9.8CVE-2017-16943 · Published 25/11/2017 · updated 17/06/2026

Package	Affected versions	Patched versions
exim exim	`= 4.88= 4.89`	No fix yet

Description

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.

References

openwall.com/lists/oss-security/2017/11/25/1 · Mailing List
openwall.com/lists/oss-security/2017/11/25/2 · Mailing List
openwall.com/lists/oss-security/2017/11/25/3 · Mailing List
openwall.com/lists/oss-security/2021/05/04/7
securitytracker.com/id/1039872 · Third Party Advisory
bugs.exim.org/show_bug.cgi · Exploit
git.exim.org/exim.git/commit/4090d62a4b25782129cc1643596dc2f6e8f63bde · Patch
git.exim.org/exim.git/commitdiff/4e6ae6235c68de243b1c2419027472d7659aa2b4 · Patch
LetUsFsck/PoC-Exploit-Mirror · Exploit
lists.exim.org/lurker/message/20171125.034842.d1d75cac.en.html · Mailing List
debian.org/security/2017/dsa-4053 · Third Party Advisory

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