5.3

CVE-2019-17420: oisf libhtp Incomplete Cleanup

CVSS: 5.3v3.1MediumModified
AliasesUBUNTU-CVE-2019-17420DEBIAN-CVE-2019-17420
Published 09-10-2019Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2019-17420 is a medium (CVSS 5.3) Incomplete Cleanup vulnerability in oisf libhtp. EPSS estimates a 1.35% chance of exploitation in the next 30 days, higher than 71.3% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (NVD)
EPSS score
1.35%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 09-10-2019
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

In OISF LibHTP before 0.5.31, as used in Suricata 4.1.4 and other products, an HTTP protocol parsing error causes the http_header signature to not alert on a response with a single \r\n ending.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.35%

Chance of exploitation in the next 30 days

Percentile

71%

Versus all other CVEs

30-day change

0.00 pp

From 1.35% on 21-09-2026

21-09-202621-10-2026
EPSS score
1.35%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • libhtp< 1:0.5.31-1
Oisf1 product
Suricata-ids1 product
Ubuntu1 product
  • libhtpAll versions (No fix recorded)

4 vendors · 4 products

References

6 links