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Bug 2136729 (CVE-2022-3620) - CVE-2022-3620 exim: UAF in dmarc_dns_lookup
Summary: CVE-2022-3620 exim: UAF in dmarc_dns_lookup
Alias: CVE-2022-3620
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 2136730 2136731
TreeView+ depends on / blocked
Reported: 2022-10-21 05:34 UTC by Sandipan Roy
Modified: 2022-11-30 12:57 UTC (History)
0 users

Fixed In Version:
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Last Closed: 2022-11-30 12:57:57 UTC

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Description Sandipan Roy 2022-10-21 05:34:02 UTC
A vulnerability was found in Exim and classified as problematic. This issue affects the function dmarc_dns_lookup of the file dmarc.c of the component DMARC Handler. The manipulation leads to use after free. The attack may be initiated remotely. The name of the patch is 12fb3842f81bcbd4a4519d5728f2d7e0e3ca1445. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-211919.

Comment 1 Sandipan Roy 2022-10-21 05:34:29 UTC
Created exim tracking bugs for this issue:

Affects: epel-all [bug 2136730]
Affects: fedora-all [bug 2136731]

Comment 2 Product Security DevOps Team 2022-11-30 12:57:55 UTC
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.

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