PT-2022-7076 · Free5Gc · Free5Gc
Salim S.I
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Published
2022-10-24
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Updated
2023-12-11
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CVE-2022-43677
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
free5GC version 3.2.1
Description
The issue is related to a malformed NGAP message that can cause the AMF and NGAP decoders to crash due to an index-out-of-range panic in the
aper.GetBitString function. This can lead to a denial of service. The vulnerability is associated with incorrect resource cleanup or deallocation in the NGAP Message Handler component of the free5GC software.Recommendations
For free5GC version 3.2.1, consider disabling the
aper.GetBitString function as a temporary workaround to prevent the crash of the AMF and NGAP decoders until a patch is available. Restrict access to the NGAP Message Handler component to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.Exploit
Improper Resource Release
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Weakness Enumeration
Related Identifiers
Affected Products
Free5Gc