Suricata detect/alert: heap-use-after-free on alert queue expansion
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.4epss 0.3%
exploitation probability
0.3%top 73% of all CVEs
observed exploitation
nono source reports it
Suricata is a network IDS, IPS and NSM engine. Prior to version 8.0.3 and 7.0.14, an unsigned integer overflow can lead to a heap use-after-free condition when generating excessive amounts of alerts for a single packet. Versions 8.0.3 and 7.0.14 contain a patch. As a workaround, do not run untrusted rulesets or run with less than 65536 signatures that can match on the same packet.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
Affected products
OISF · suricataReferences
https://github.com/OISF/suricata/commit/549d7bf60616de8e54686a188196453b5b22f715https://github.com/OISF/suricata/commit/5789a3d3760dbf33d93fc56c27bd9529e5bdc8f2https://github.com/OISF/suricata/commit/ac1eb394181530430fb7262969f423a1bf8f209bhttps://github.com/OISF/suricata/security/advisories/GHSA-mqr8-m3m4-2hw5https://redmine.openinfosecfoundation.org/issues/8190