CVE-2023-37026: Null Pointer Dereference
A Null pointer dereference vulnerability in the Mobile Management Entity (MME) in Magma <= 1.8.0 (fixed in v1.9 commit 08472ba98b8321f802e95f5622fa90fec2dea486) allows network-adjacent attackers to crash the MME via an S1AP E-RAB Release Response packet missing an expected MMEUES1APID field.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2023-37026?
CVE-2023-37026 is considered a high severity vulnerability as it allows network-adjacent attackers to crash the Mobile Management Entity.
How do I fix CVE-2023-37026?
To fix CVE-2023-37026, upgrade the Magma Mobile Management Entity to version 1.9 or later.
What causes the CVE-2023-37026 vulnerability?
CVE-2023-37026 is caused by a null pointer dereference when the MME processes an S1AP `E-RAB Release Response` packet missing an expected `MME_UE_S1AP_ID` field.
Who is affected by CVE-2023-37026?
CVE-2023-37026 affects implementations of the Magma Mobile Management Entity version 1.8.0 and earlier.
What impact does CVE-2023-37026 have on systems?
The impact of CVE-2023-37026 is that it can cause a denial of service by crashing the Mobile Management Entity when exploited.