CVE-2018-13441: nagios NULL Pointer Dereference
CVSS: 5.5v3.0MediumModified
AliasesDEBIAN-CVE-2018-13441
Published 12-07-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-13441 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in nagios. EPSS estimates a 1.34% chance of exploitation in the next 30 days, higher than 70.8% of scored vulnerabilities. 2 public exploits are recorded.
CVSS score
5.5/10
010
Medium · v3.0 (NVD)EPSS score
1.34%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2github, exploit-database
Advisory lineage
Upstream 0 · Downstream 4 · Related 3Timeline
- 12-07-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
qh_help in Nagios Core version 4.4.1 and earlier is prone to a NULL pointer dereference vulnerability, which allows attacker to cause a local denial-of-service condition by sending a crafted payload to the listening UNIX socket.
CVSS metrics
3 scores · 2 sources · 2 versionsMedium 5.5Preferred score · NVD (NIST)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HSourcesAll 2 agree
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Low 2.1Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
1.34%
Chance of exploitation in the next 30 days
Percentile
71%
Versus all other CVEs
30-day change
0.00 pp
From 1.34% on 18-09-2026
18-09-202618-10-2026
EPSS score1.34%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
2 found8Df4A174158Df69Ebd765F824Bd736B8
Maturity: poc
Nagios Core 4.4.1 - Denial of Service
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Debian1 product
- nagios4< 4.3.4-3
Nagios1 product
- nagios≤ 4.4.1
2 vendors · 2 products
References
7 links- gist.github.com/fakhrizulkifli/8df4a174158df69ebd765f824bd736b8X Refsource MISCExploitThird Party Advisory
