| Title | UERAMSIM UERANSIM nr-gnb <3.3.0 CWE-476: NULL Pointer Dereference |
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| Description | The RLS decoding layer of UERANSIM nr-gnb lacks a non-empty check (in DecodeRlsMessage function in rls_pdu.cpp), it only verifies that pduLength <= 16384 and remainingSize > 0. As a result, it accepts the message and produces an empty OctetString of length 0. The upper GTP Layer performs a read at address 0x0, resulting in a SIGSEGV(signal 11).The attacker can launch a remote Denial-of-Service attack to nr-gnb using malformed RLS message. |
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| Source | ⚠️ https://gist.github.com/centauruszzz/c16cc8635637decd413394d602d0a858 |
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| User | centauruszzz (UID 100408) |
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| Submission | 08/06/2026 09:57 (2 months ago) |
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| Moderation | 09/28/2026 14:02 (2 months later) |
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| Status | Duplicate |
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| VulDB entry | 359784 [aligungr UERANSIM up to 3.2.7 Radio Link Simulation Layer src/lib/rls/rls_pdu.cpp rls::DecodeRlsMessage pduLength uncaught exception] |
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| Points | 0 |
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