Release of Invalid Pointer or Reference Affecting exim4 package, versions <4.95-4
Threat Intelligence
EPSS
0.37% (73rd
percentile)
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Test your applications- Snyk ID SNYK-DEBIANUNSTABLE-EXIM4-2976180
- published 7 Aug 2022
- disclosed 6 Aug 2022
Introduced: 6 Aug 2022
CVE-2022-37451 Open this link in a new tabHow to fix?
Upgrade Debian:unstable exim4 to version 4.95-4 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream exim4 package and not the exim4 package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
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.
References
- https://security-tracker.debian.org/tracker/CVE-2022-37451
- 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
- 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://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/
CVSS Scores
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