CVE-2019-15699
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.65%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- EPSS
- 1.65% probability · 75th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- suricata-ids/suricata
- Source
- cve@mitre.org
References
- https://lists.openinfosecfoundation.org/pipermail/oisf-announce/Third Party Advisory
- https://suricata-ids.org/2019/09/24/suricata-4-1-5-released/Release Notes, Vendor Advisory
- https://lists.openinfosecfoundation.org/pipermail/oisf-announce/Third Party Advisory
- https://suricata-ids.org/2019/09/24/suricata-4-1-5-released/Release Notes, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.