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Fencer Intel
medium 5.9

CVE-2024-55627 json

Suricata segfault on StreamingBufferSlideToOffsetWithRegions

published last yr. modified 4mo ago also EUVD-2024-52825

cvss
5.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 63%
public exploits
0
none known

Summary

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.8, a specially crafted TCP stream can lead to a very large buffer overflow while being zero-filled during initialization with memset due to an unsigned integer underflow. The issue has been addressed in Suricata 7.0.8.

Patch / fix

  • oisf suricata 7.0.8
  • openinfosecfoundation suricata 7.0.8
  • suricata-ids suricata 7.0.8
  • suricata Debian 14, Debian 13 1:7.0.8-1

debian advisories DEBIAN-CVE-2024-55627

  • 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 +1 more 7.0.8-r0

alpine advisories ALPINE-CVE-2024-55627

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

Is CVE-2024-55627 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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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-2024-55627 updated cvss 7.5

suricata: Suricata: Buffer overflow via specially crafted TCP stream

  • 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
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

1.01% chance of exploitation in the next 30 days, higher than 63% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by version score vector
CNA 3.1 5.9 CVSS:3.1/AV:N/AC:H/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-191 Integer Underflow (Wrap or Wraparound)
  • CWE-122 Heap-based Buffer Overflow
  • CWE-787 Out-of-bounds Write

References

Sources

Fencer Intel 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.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.