What’s Vulnerable › Vulnerabilities

CVE-2019-10050

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-05-13 · updated 2026-06-17
• Weakness: CWE-125

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.

Affected products

• OISF suricata: from 4.0.0 before 4.1.4 — fixed in 4.1.4

How to fix

Upgrade to a fixed version: OISF suricata 4.1.4. Check the vendor advisory for mitigations.

References

• https://lists.openinfosecfoundation.org/pipermail/oisf-announce/
• https://suricata-ids.org/2019/04/30/suricata-4-1-4-released/
• https://lists.openinfosecfoundation.org/pipermail/oisf-announce/
• https://suricata-ids.org/2019/04/30/suricata-4-1-4-released/

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