Bug 2182877 (CVE-2022-43634) - CVE-2022-43634 netatalk: buffer overflow in dsi_writeinit().
Summary: CVE-2022-43634 netatalk: buffer overflow in dsi_writeinit().
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2022-43634
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2182878 2182879
Blocks:
TreeView+ depends on / blocked
 
Reported: 2023-03-29 21:04 UTC by Pedro Sampaio
Modified: 2023-03-30 00:52 UTC (History)
0 users

Fixed In Version:
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Last Closed: 2023-03-30 00:52:58 UTC
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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.

https://github.com/Netatalk/Netatalk/pull/186
https://www.zerodayinitiative.com/advisories/ZDI-23-094/
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.
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