CVE-2019-15699 — CRITICAL (9.1)

Vulnerability Description

An issue was discovered in app-layer-ssl.c in Suricata 4.1.4. Upon receiving a corrupted SSLv3 (TLS 1.2) packet, the parser function TLSDecodeHSHelloExtensions tries to access a memory region that is not allocated, because the expected length of HSHelloExtensions does not match the real length of the HSHelloExtensions part of the packet.

CVSS Score

9.1

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Suricata-Ids	Suricata	4.1.4

Related Weaknesses (CWE)

CWE-125

References

https://lists.openinfosecfoundation.org/pipermail/oisf-announce/Third Party Advisory
https://suricata-ids.org/2019/09/24/suricata-4-1-5-released/Release NotesVendor Advisory
https://lists.openinfosecfoundation.org/pipermail/oisf-announce/Third Party Advisory
https://suricata-ids.org/2019/09/24/suricata-4-1-5-released/Release NotesVendor Advisory

FAQ

What is CVE-2019-15699?

CVE-2019-15699 is a vulnerability with a CVSS score of 9.1 (CRITICAL). An issue was discovered in app-layer-ssl.c in Suricata 4.1.4. Upon receiving a corrupted SSLv3 (TLS 1.2) packet, the parser function TLSDecodeHSHelloExtensions tries to access a memory region that is ...

How severe is CVE-2019-15699?

CVE-2019-15699 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2019-15699?

Check the references section above for vendor advisories and patch information. Affected products include: Suricata-Ids Suricata.