Improper input validation in GNU Glibc
CVE-2018-19591
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.055 (92.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 92.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.055 · newest: 0.055 · change: 0.000
Affected products
- GNU Glibc
- Fedoraproject Fedora — versions 28, 29
Weakness classification (CWE)
Public proof-of-concept exploits
References
- sourceware.org/git/
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- www.securityfocus.com/bid/106037 (VDB Entry, Third Party Advisory, vdb-entry)
- sourceware.org/bugzilla/show_bug.cgi (Exploit, Third Party Advisory, Issue Tracking)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- security.gentoo.org/glsa/201903-09 (vendor-advisory, Third Party Advisory)
- www.securitytracker.com/id/1042174 (VDB Entry, Third Party Advisory, vdb-entry)
- sourceware.org/git/gitweb.cgi
- security.netapp.com/advisory/ntap-20190321-0003/
- security.gentoo.org/glsa/201908-06 (vendor-advisory)
Frequently asked questions
- What is CVE-2018-19591?
- CVE-2018-19591 is a high-severity vulnerability in GNU Glibc, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2018-12-04.
- How severe is CVE-2018-19591?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2018-19591 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.