CVE-2025-29917CWE-770

Suricata decode_base64: signature can do large memory allocation

Medium · published April 10, 2025

CVSS v3.1
6.2
EPSS
0%
Percentile
18.0
In the wild
Unconfirmed
What it is

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. The bytes setting in the decode_base64 keyword is not properly limited. Due to this, signatures using the keyword and setting can cause large memory allocations of up to 4 GiB per thread. This vulnerability is fixed in 7.0.9.

The record
Technical detail
CVSS v3.1
6.2 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00268 · 18.0th percentile
Weakness
CWE-770 · Allocation of Resources Without Limits or Throttling
Published
2025-04-10T21:00Z
EPSS history
Timeline
  • 10 APR 21:00Z
    Suricata decode_base64: signature can do large memory allocation
    cvelistv5