Zeek < 8.0.9 Null Pointer Dereference DoS via Kerberos KRB_ERROR Parsing
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| zeek | zeek | affected |
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No data.
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| Zeek | Zeek |
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No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.923% probability within 30 days)
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| CPEs | cpe:2.3:a:zeek:zeek:*:*:*:*:*:*:*:* |
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| Metrics |
ssvc
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| First Time appeared |
Zeek
Zeek zeek |
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| Vendors & Products |
Zeek
Zeek zeek |
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| Description | Zeek before 8.0.9 contains a null pointer dereference vulnerability in its Kerberos protocol analyzer that allows unauthenticated remote attackers to crash the sensor by sending a crafted KRB_ERROR message with error-code 25 (KDC_ERR_PREAUTH_REQUIRED) containing a PA-DATA element with padata-type 2, 3, 11, or 19. Attackers can exploit a parser and analyzer state mismatch where proc_padata() dereferences an uninitialized pa_data_element field selected by the wrong parsing arm, triggering a crash via a single UDP or TCP packet to port 88 without any credentials or prior authentication. | |
| Title | Zeek < 8.0.9 Null Pointer Dereference DoS via Kerberos KRB_ERROR Parsing | |
| Weaknesses | CWE-476 | |
| References |
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| Metrics |
cvssV3_1
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