CVE-2022-37451

Public Exploit

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.

Link	Tags
https://github.com/Exim/exim/wiki/EximSecurity	third party advisory release notes
https://www.exim.org/static/doc/security/	vendor advisory
https://github.com/ivd38/exim_invalid_free	patch exploit third party advisory
https://www.openwall.com/lists/oss-security/2022/08/06/1	third party advisory mailing list
https://lists.exim.org/lurker/message/20220625.141825.d6de6074.en.html	vendor advisory release notes mailing list
https://cwe.mitre.org/data/definitions/762.html	third party advisory
https://github.com/Exim/exim/compare/exim-4.95...exim-4.96	third party advisory release notes
https://github.com/Exim/exim/commit/51be321b27825c01829dffd90f11bfff256f7e42	patch third party advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LETR5CVDPFOFQHXCJP6NFLG52JZHQYDY/	vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XSWDF4QEXD4TDWQLYQOWCHBJKTDQR4Z7/	vendor advisory

What is the severity of CVE-2022-37451?: CVE-2022-37451 has been scored as a high severity vulnerability.
How to fix CVE-2022-37451?: To fix CVE-2022-37451, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-37451 being actively exploited in the wild?: It is possible that CVE-2022-37451 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.