CVE-2024-23836

moderate-risk
Published 2024-02-26

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 6.0.16 and 7.0.3, an attacker can craft traffic to cause Suricata to use far more CPU and memory for processing the traffic than needed, which can lead to extreme slow downs and denial of service. This vulnerability is patched in 6.0.16 or 7.0.3. Workarounds include disabling the affected protocol app-layer parser in the yaml and reducing the `stream.reassembly.depth` value helps reduce the severity of the issue.

Do I need to act?

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0.85% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (3)

Affected Vendors

Fedoraproject Oisf

References (38)

Patch https://github.com/OISF/suricata/commit/18841a58da71e735ddf4e52cbfa6989755ecbeb7
Patch https://github.com/OISF/suricata/commit/2a2120ecf10c5b5713ec2bf59469fe57f7b5b747
Patch https://github.com/OISF/suricata/commit/83c5567ea7b0b28376f57dcfee9c6301448c7bc7
Patch https://github.com/OISF/suricata/commit/8efaebe293e2a74c8e323fa85a6f5fadf82801bc
Patch https://github.com/OISF/suricata/commit/97953998d2d60673ed6c30ddfb6a2d59b4230f97
Patch https://github.com/OISF/suricata/commit/b1549e930f6426eeff43f12b672337cbcda566b8
Patch https://github.com/OISF/suricata/commit/cd035d59e3df157b606f4fe67324ea8e437be786
Patch https://github.com/OISF/suricata/commit/ce9b90326949c94a46611d6394e28600ee5e8bd5
Patch https://github.com/OISF/suricata/commit/e7e28822f473320658d6125f16ac3f0524baff01
Patch https://github.com/OISF/suricata/commit/f9de1cca6182e571f1c02387dca6e695e55608af
Vendor Advisory https://github.com/OISF/suricata/security/advisories/GHSA-q33q-45cr-3cpc
Mailing List https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproje...
Mailing List https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproje...
Issue Tracking https://redmine.openinfosecfoundation.org/issues/6531
Issue Tracking https://redmine.openinfosecfoundation.org/issues/6532
Issue Tracking https://redmine.openinfosecfoundation.org/issues/6540
Issue Tracking https://redmine.openinfosecfoundation.org/issues/6658
Issue Tracking https://redmine.openinfosecfoundation.org/issues/6659
Issue Tracking https://redmine.openinfosecfoundation.org/issues/6660
Patch https://github.com/OISF/suricata/commit/18841a58da71e735ddf4e52cbfa6989755ecbeb7
and 18 more references
38
/ 100
moderate-risk
Severity 26/34 · High
Exploitability 3/34 · Minimal
Exposure 9/34 · Low