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CVE-2018-19591 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CNA: CISA-ADPCVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BO7WHN52GFMC5F2I2232GFIPSSXWFV7G/	CVE
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M52KE4YR3GNMHQUOS3DKAGZD5TQ5D5UH/	CVE
https://security.gentoo.org/glsa/201903-09	CVE	Third Party Advisory
https://security.gentoo.org/glsa/201908-06	CVE
https://security.netapp.com/advisory/ntap-20190321-0003/	CVE
https://sourceware.org/bugzilla/show_bug.cgi?id=23927	CVE	ExploitIssue TrackingThird Party Advisory
https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Ba=commitdiff%3Bh=d527c860f5a3f0ed687bd03f0cb464612dc23408	CVE
https://sourceware.org/git/?p=glibc.git%3Ba=blob_plain%3Bf=NEWS%3Bhb=HEAD	CVE
https://usn.ubuntu.com/4416-1/	CVE
http://www.securityfocus.com/bid/106037	CVE	Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1042174	CVE	Third Party AdvisoryVDB Entry
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BO7WHN52GFMC5F2I2232GFIPSSXWFV7G/	[email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M52KE4YR3GNMHQUOS3DKAGZD5TQ5D5UH/	[email protected]
https://security.gentoo.org/glsa/201903-09	[email protected]	Third Party Advisory
https://security.gentoo.org/glsa/201908-06	[email protected]
https://security.netapp.com/advisory/ntap-20190321-0003/	[email protected]
https://sourceware.org/bugzilla/show_bug.cgi?id=23927	[email protected]	ExploitIssue TrackingThird Party Advisory
https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Ba=commitdiff%3Bh=d527c860f5a3f0ed687bd03f0cb464612dc23408	[email protected]
https://sourceware.org/git/?p=glibc.git%3Ba=blob_plain%3Bf=NEWS%3Bhb=HEAD	[email protected]
https://usn.ubuntu.com/4416-1/	[email protected]
http://www.securityfocus.com/bid/106037	[email protected]	Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1042174	[email protected]	Third Party AdvisoryVDB Entry

see all 22 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-20	Improper Input Validation	[email protected]
CWE-404	Improper Resource Shutdown or Release	CISA-ADP

Affected Products

Product	Versions
gnu glibc	<= 2.28
CPE cpe:2.3:a:gnu:glibc:::::::: Remediation No remediation found in references.
fedoraproject fedora	28 29
CPE cpe:2.3:o:fedoraproject:fedora:28:::::::* cpe:2.3:o:fedoraproject:fedora:29:::::::* Remediation No remediation found in references.

Change History

13 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Dec 3, 2025	CVE Modified	CISA-ADP
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Nov 7, 2023	CVE Modified	[email protected]
Jul 9, 2020	CVE Modified	[email protected]
Aug 15, 2019	CVE Modified	[email protected]
Mar 21, 2019	CVE Modified	[email protected]
Mar 14, 2019	Modified Analysis	[email protected]
Mar 14, 2019	CVE Modified	[email protected]
Jan 4, 2019	Initial Analysis	[email protected]
Dec 5, 2018	CVE Modified	[email protected]