Description
An issue was discovered in the base64d function in the SMTP listener in Exim before 4.90.1. By sending a handcrafted message, a buffer overflow may happen. This can be used to execute code remotely.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- https://exim.org/static/doc/security/CVE-2018-6789.txt ↗
- http://www.openwall.com/lists/oss-security/2018/02/07/2 ↗
- https://usn.ubuntu.com/3565-1/ ↗
- http://openwall.com/lists/oss-security/2018/02/10/2 ↗
- http://www.securitytracker.com/id/1040461 ↗
- https://www.debian.org/security/2018/dsa-4110 ↗
- https://www.exploit-db.com/exploits/44571/ ↗
- https://lists.debian.org/debian-lts-announce/2018/02/msg00009.html ↗
- https://git.exim.org/exim.git/commit/cf3cd306062a08969c41a1cdd32c6855f1abecf1 ↗
- https://devco.re/blog/2018/03/06/exim-off-by-one-RCE-exploiting-CVE-2018-6789-en/ ↗
- http://www.securityfocus.com/bid/103049 ↗
- https://www.exploit-db.com/exploits/45671/ ↗
- http://packetstormsecurity.com/files/162959/Exim-base64d-Buffer-Overflow.html ↗
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-6789 ↗