CVE-2018-19591
HIGH severity · CVSS 7.5 · Improper input validation
7.5CVSS HIGH
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)6%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://www.securityfocus.com/bid/106037Advisory
- http://www.securitytracker.com/id/1042174Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BO7WHN52GFMC5F2I2232GFIPSSXWFV7G/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M52KE4YR3GNMHQUOS3DKAGZD5TQ5D5UH/
- https://security.gentoo.org/glsa/201903-09Advisory
- https://security.gentoo.org/glsa/201908-06
- https://security.netapp.com/advisory/ntap-20190321-0003/
- https://sourceware.org/bugzilla/show_bug.cgi?id=23927Advisory