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CVE-2026-22264
7.4 HIGH
- CVSS version: 3.1
- Attack vector (AV): NETWORK
- Attack complexity (AC): HIGH
- Privileges required (PR): NONE
- User interaction (UI): NONE
- Scope (S): UNCHANGED
- Confidentiality impact (C): NONE
- Integrity impact (I): HIGH
- Availability impact (A): HIGH
Suricata detect/alert: heap-use-after-free on alert queue expansion
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.
References
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https://github.com/OISF/suricata/security/advisories/GHSA-mqr8-m3m4-2hw5 x_refsource_CONFIRM
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https://redmine.openinfosecfoundation.org/issues/8190 x_refsource_MISC
Affected products
suricata
- ==< 7.0.14
- ==>= 8.0.0, < 8.0.3
Package maintainers
-
@magenbluten magenbluten <magenbluten@codemonkey.cc>