CVE-2022-37451 Information

Description

Exim before 4.96 has an invalid free in pam_converse in auths/call_pam.c because store_free is not used after store_malloc.

Reference

https://www.exim.org/static/doc/security/ https://github.com/ivd38/exim_invalid_free https://github.com/Exim/exim/compare/exim-4.95…exim-4.96 https://lists.exim.org/lurker/message/20220625.141825.d6de6074.en.html https://www.openwall.com/lists/oss-security/2022/08/06/1 https://github.com/Exim/exim/wiki/EximSecurity https://cwe.mitre.org/data/definitions/762.html https://github.com/Exim/exim/commit/51be321b27825c01829dffd90f11bfff256f7e42