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Fencer Vulns
high 7.5

CVE-2024-38535 json

Suricata http2: oom from duplicate headers

published 2024-07-11 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-37399

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 67%
public exploits
0
none known

Summary

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Suricata can run out of memory when parsing crafted HTTP/2 traffic. Upgrade to 6.0.20 or 7.0.6.

Patch / fix

  • OISF suricata 6.0.20, 7.0.6
  • suricata Debian 14, Debian 13 1:7.0.6-1

debian advisories DEBIAN-CVE-2024-38535

  • suricata openSUSE Tumbleweed 8.0.0-1.1

opensuse advisories openSUSE-SU-2025:15394-1

  • suricata Alpine 3.24, Alpine 3.23, Alpine 3.22 +2 more 7.0.6-r0

alpine advisories ALPINE-CVE-2024-38535

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-38535 updated cvss 7.5

suricata: Suricata: can run out of memory when parsing crafted HTTP/2 traffic

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
2 y ago

Exploit prediction

1.17% chance of exploitation in the next 30 days, higher than 67% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • OISF suricata

Classification

Weakness
  • CWE-770 Allocation of Resources Without Limits or Throttling

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.