Vulnerability Description
A buffer over-read issue was discovered in Suricata 4.1.x before 4.1.4. If the input of the decode-mpls.c function DecodeMPLS is composed only of a packet of source address and destination address plus the correct type field and the right number for shim, an attacker can manipulate the control flow, such that the condition to leave the loop is true. After leaving the loop, the network packet has a length of 2 bytes. There is no validation of this length. Later on, the code tries to read at an empty position, leading to a crash.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Oisf | Suricata | >= 4.0.0, < 4.1.4 |
Related Weaknesses (CWE)
References
- https://lists.openinfosecfoundation.org/pipermail/oisf-announce/Third Party Advisory
- https://suricata-ids.org/2019/04/30/suricata-4-1-4-released/PatchVendor Advisory
- https://lists.openinfosecfoundation.org/pipermail/oisf-announce/Third Party Advisory
- https://suricata-ids.org/2019/04/30/suricata-4-1-4-released/PatchVendor Advisory
FAQ
What is CVE-2019-10050?
CVE-2019-10050 is a vulnerability with a CVSS score of 7.5 (HIGH). A buffer over-read issue was discovered in Suricata 4.1.x before 4.1.4. If the input of the decode-mpls.c function DecodeMPLS is composed only of a packet of source address and destination address plu...
How severe is CVE-2019-10050?
CVE-2019-10050 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-10050?
Check the references section above for vendor advisories and patch information. Affected products include: Oisf Suricata.