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osvGoogleOSV:GHSA-59HJ-62F5-FGMC
HistoryOct 24, 2022 - 7:00 p.m.

free5GC vulnerable to malformed NGAP message crashing the AMF and NGAP decoders

2022-10-2419:00:24
Google
osv.dev
2
free5gc ngap vulnerability software crash amf decoders

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

AI Score

5.5

Confidence

High

EPSS

0.001

Percentile

23.8%

In free5GC 3.2.1, a malformed NGAP message can crash the AMF and NGAP decoders via an index-out-of-range panic in aper.GetBitString.

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

AI Score

5.5

Confidence

High

EPSS

0.001

Percentile

23.8%

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