CVE-2022-37451
First published: Sat Aug 06 2022(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| sa-exim | <4.96 | |
| Fedora | =35 | |
| Fedora | =36 |
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Reference Links
- https://cwe.mitre.org/data/definitions/762.html
- https://github.com/Exim/exim/commit/51be321b27825c01829dffd90f11bfff256f7e42
- https://github.com/Exim/exim/compare/exim-4.95...exim-4.96
- https://github.com/Exim/exim/wiki/EximSecurity
- https://github.com/ivd38/exim_invalid_free
- https://lists.exim.org/lurker/message/20220625.141825.d6de6074.en.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LETR5CVDPFOFQHXCJP6NFLG52JZHQYDY/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XSWDF4QEXD4TDWQLYQOWCHBJKTDQR4Z7/
- https://www.exim.org/static/doc/security/
- https://www.openwall.com/lists/oss-security/2022/08/06/1
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LETR5CVDPFOFQHXCJP6NFLG52JZHQYDY/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XSWDF4QEXD4TDWQLYQOWCHBJKTDQR4Z7/
Frequently Asked Questions
What is the vulnerability ID of this vulnerability?
The vulnerability ID is CVE-2022-37451.
What is the severity of CVE-2022-37451?
The severity of CVE-2022-37451 is high with a severity value of 7.5.
What is the affected software for CVE-2022-37451?
The affected software for CVE-2022-37451 is Exim before 4.96 and Fedora versions 35 and 36.
How can I fix CVE-2022-37451?
You can fix CVE-2022-37451 by updating Exim to version 4.96 or applying the necessary updates for Fedora versions 35 and 36.
Where can I find more information about CWE-763?
You can find more information about CWE-763 at the Mitre website.
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