CVE-2019-16411: suricata-ids suricata Out-of-bounds Read
Vulnerability summary
CVE-2019-16411 is a critical (CVSS 9.8) Out-of-bounds Read vulnerability in suricata-ids suricata. EPSS estimates a 2.03% chance of exploitation in the next 30 days, higher than 80.8% of scored vulnerabilities.
Timeline
- 24-09-2019PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
An issue was discovered in Suricata 4.1.4. By sending multiple IPv4 packets that have invalid IPv4Options, the function IPV4OptValidateTimestamp in decode-ipv4.c tries to access a memory region that is not allocated. There is a check for o->len < 5 (corresponding to 2 bytes of header and 3 bytes of data). Then, "flag = *(o->data + 3)" places one beyond the 3 bytes, because the code should have been "flag = *(o->data + 1)" instead.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
2.03%
Chance of exploitation in the next 30 days
Percentile
81%
Versus all other CVEs
30-day change
0.00 pp
From 2.03% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian1 product
- suricata< 1:4.1.5-1
Suricata-ids1 product
- suricata4.1.4
Ubuntu1 product
- suricataAll versions (No fix recorded)
3 vendors · 3 products
References
6 links- suricata-ids.org/2019/09/24/suricata-4-1-5-released/X Refsource MISCRelease NotesVendor AdvisoryREPORT
- www.code-intelligence.com/cve-2019-16411X Refsource MISC
