Vulnerability Monitor

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CVE-2015-8954

The MemcmpLowercase function in Suricata before 2.0.6 improperly excludes the first byte from comparisons, which might allow remote attackers to bypass intrusion-prevention functionality via a crafted HTTP request.

Published

2017-03-20T16:59:01.407

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 9.8 (CRITICAL)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

6.4

Weaknesses

Type: Primary
CWE-264

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	openinfosecfoundation	suricata	≤ 2.0.5	Yes

References

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=777523 Third Party Advisory ([email protected])
https://redmine.openinfosecfoundation.org/issues/1364 Third Party Advisory ([email protected])
https://suricata-ids.org/2015/01/15/suricata-2-0-6-available/ Release Notes, Vendor Advisory ([email protected])
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=777523 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://redmine.openinfosecfoundation.org/issues/1364 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://suricata-ids.org/2015/01/15/suricata-2-0-6-available/ Release Notes, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)