Bug 2141897 (CVE-2022-44792) - CVE-2022-44792 net-snmp: NULL Pointer Exception when handling ipDefaultTTL
Summary: CVE-2022-44792 net-snmp: NULL Pointer Exception when handling ipDefaultTTL
Keywords:
Status: NEW
Alias: CVE-2022-44792
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2141900 2141901 2141902 2141899
Blocks: 2141107
TreeView+ depends on / blocked
 
Reported: 2022-11-11 04:18 UTC by Sandipan Roy
Modified: 2023-01-16 08:00 UTC (History)
1 user (show)

Fixed In Version:
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Doc Text:
A vulnerability was found in Net-SNMP. This issue occurs because the handle_ipDefaultTTL function in agent/mibgroup/ip-mib/ip_scalars.c in Net-SNMP has a NULL Pointer Exception flaw that allows a remote attacker (who has to write access) to cause the instance to crash via a crafted UDP packet, resulting in a denial of service.
Clone Of:
Environment:
Last Closed:


Attachments (Terms of Use)

Description Sandipan Roy 2022-11-11 04:18:54 UTC
handle_ipDefaultTTL in agent/mibgroup/ip-mib/ip_scalars.c in Net-SNMP 5.8 through 5.9.3 has a NULL Pointer Exception bug that can be used by a remote attacker (who has write access) to cause the instance to crash via a crafted UDP packet, resulting in Denial of Service.

https://github.com/net-snmp/net-snmp/issues/474
https://gist.github.com/menglong2234/b7bc13ae1a144f47cc3c95a7ea062428

Comment 1 Sandipan Roy 2022-11-11 04:25:48 UTC
Created net-snmp tracking bugs for this issue:

Affects: fedora-35 [bug 2141899]
Affects: fedora-36 [bug 2141900]


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