Bug 2250095 (CVE-2023-46849) - CVE-2023-46849 openvpn: Use of --fragment option can lead to a division by zero error
Summary: CVE-2023-46849 openvpn: Use of --fragment option can lead to a division by ze...
Keywords:
Status: NEW
Alias: CVE-2023-46849
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
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Depends On: 2250096 2250097
Blocks:
TreeView+ depends on / blocked
 
Reported: 2023-11-16 16:15 UTC by Mauro Matteo Cascella
Modified: 2023-11-16 16:21 UTC (History)
0 users

Fixed In Version: openvpn 2.12.2
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Description Mauro Matteo Cascella 2023-11-16 16:15:15 UTC 
Using the --fragment option in certain configuration setups OpenVPN version 2.6.0 to 2.6.6 allows an attacker to trigger a divide by zero behaviour which could cause an application crash, leading to a denial of service.

References:
https://openvpn.net/security-advisory/access-server-security-update-cve-2023-46849-cve-2023-46850/
https://community.openvpn.net/openvpn/wiki/CVE-2023-46849
Comment 1 Mauro Matteo Cascella 2023-11-16 16:15:46 UTC 
Created openvpn tracking bugs for this issue:

Affects: epel-all [bug 2250096]
Affects: fedora-all [bug 2250097]
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