UBUNTU-CVE-2018-19591

Advisory lineage Upstream: 1 Downstream: 1
Upstream
CVE-2018-19591
Downstream
USN-4416-1
Published: 04 Dec 2018, 16:29
Last modified:22 Apr 2026, 11:51

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

04 Dec 2018, 16:29
Published
Vulnerability first disclosed
22 Apr 2026, 11:51
Last Modified
Vulnerability information updated

Description

In the GNU C Library (aka glibc or libc6) through 2.28, attempting to resolve a crafted hostname via getaddrinfo() leads to the allocation of a socket descriptor that is not closed. This is related to the if_nametoindex() function.

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • v3.0•HIGH•Score: 7.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Systems

  • ubuntu•glibc

    < 2.27-3ubuntu1.2

References (3)