CVE-2022-37451

Published: Aug 6, 2022Modified: Nov 21, 2024

7.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability: 3.9 / Impact: 3.6

Source: NVD

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.

Affected (3)

Products: Exim: Exim · Fedoraproject: Fedora

1 product

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Exim Exim	Before 4.96

Configuration B

2 vulnerable

Vulnerable Software	Affected Versions
Fedoraproject Fedora	Version 35
Fedoraproject Fedora	Version 36

Related CWEs

CWE-763

Release of Invalid Pointer or Reference

The product attempts to return a memory resource to the system, but it calls the wrong release function or calls the appropriate release function incorrectly.

References (20)

https://cwe.mitre.org/data/definitions/762.html

Source: cve@mitre.org

Third Party Advisory

https://github.com/Exim/exim/commit/51be321b27825c01829dffd90f11bfff256f7e42

Source: cve@mitre.org

PatchThird Party Advisory

https://github.com/Exim/exim/compare/exim-4.95...exim-4.96

Source: cve@mitre.org

Release NotesThird Party Advisory

https://github.com/Exim/exim/wiki/EximSecurity

Source: cve@mitre.org

Release NotesThird Party Advisory

https://github.com/ivd38/exim_invalid_free

Source: cve@mitre.org

ExploitPatchThird Party Advisory

https://lists.exim.org/lurker/message/20220625.141825.d6de6074.en.html

Source: cve@mitre.org

Mailing ListRelease NotesVendor Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LETR5CVDPFOFQHXCJP6NFLG52JZHQYDY/

Source: cve@mitre.org

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XSWDF4QEXD4TDWQLYQOWCHBJKTDQR4Z7/

Source: cve@mitre.org

https://www.exim.org/static/doc/security/

Source: cve@mitre.org

Vendor Advisory

https://www.openwall.com/lists/oss-security/2022/08/06/1

Source: cve@mitre.org

Mailing ListThird Party Advisory

https://cwe.mitre.org/data/definitions/762.html