9.8

CVE-2018-10243: oisf libhtp Out-of-bounds Read

CVSS: 9.8v3.0CriticalModified
AliasesUBUNTU-CVE-2018-10243DEBIAN-CVE-2018-10243
Published 04-04-2019Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-10243 is a critical (CVSS 9.8) Out-of-bounds Read vulnerability in oisf libhtp. EPSS estimates a 2.58% chance of exploitation in the next 30 days, higher than 85% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.0 (NVD)
EPSS score
2.58%
0%100%
Low · +0.47 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1
DLA-1751-1

Timeline

  1. 04-04-2019
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

htp_parse_authorization_digest in htp_parsers.c in LibHTP 0.5.26 allows remote attackers to cause a heap-based buffer over-read via an authorization digest header.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

2.58%

Chance of exploitation in the next 30 days

Percentile

85%

Versus all other CVEs

30-day change

+0.47 pp

From 2.11% on 21-09-2026

21-09-202621-10-2026
EPSS score
2.58%

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

Debian2 products
  • libhtp< 1:0.5.28-1
  • suricata< 1:4.0.0-1
Ubuntu2 products
  • htpAll versions (No fix recorded)
  • suricataAll versions (No fix recorded)
Oisf1 product

3 vendors · 5 products

References

5 links