Bug 2182877 (CVE-2022-43634)

Summary: CVE-2022-43634 netatalk: buffer overflow in dsi_writeinit().
Product: [Other] Security Response Reporter: Pedro Sampaio <psampaio>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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Last Closed: 2023-03-30 00:52:58 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2182878, 2182879    
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Description Pedro Sampaio 2023-03-29 21:04:13 UTC
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Netatalk. Authentication is not required to exploit this vulnerability. The specific flaw exists within the dsi_writeinit function. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-17646.


Comment 1 Pedro Sampaio 2023-03-29 21:04:31 UTC
Created netatalk tracking bugs for this issue:

Affects: epel-all [bug 2182879]
Affects: fedora-all [bug 2182878]

Comment 2 Product Security DevOps Team 2023-03-30 00:52:56 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.