Improper Input Validation Affecting glibc package, versions <2.27-3ubuntu1.2
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1804-GLIBC-356555
- published2 Dec 2018
- disclosed4 Dec 2018
Introduced: 2 Dec 2018
CVE-2018-19591 (opens in a new tab)How to fix?
Upgrade Ubuntu:18.04 glibc to version 2.27-3ubuntu1.2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu.
See How to fix? for Ubuntu:18.04 relevant fixed versions and status.
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.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-19591
- https://sourceware.org/bugzilla/show_bug.cgi?id=23927
- https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=d527c860f5a3f0ed687bd03f0cb464612dc23408
- https://sourceware.org/git/?p=glibc.git;a=blob_plain;f=NEWS;hb=HEAD
- https://security-tracker.debian.org/tracker/CVE-2018-19591
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BO7WHN52GFMC5F2I2232GFIPSSXWFV7G/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M52KE4YR3GNMHQUOS3DKAGZD5TQ5D5UH/
- https://security.gentoo.org/glsa/201908-06
- https://security.gentoo.org/glsa/201903-09
- https://security.netapp.com/advisory/ntap-20190321-0003/
- http://www.securityfocus.com/bid/106037
- http://www.securitytracker.com/id/1042174
- https://usn.ubuntu.com/4416-1/
- 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://sourceware.org/git/?p=glibc.git%3Ba=blob_plain%3Bf=NEWS%3Bhb=HEAD
- https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Ba=commitdiff%3Bh=d527c860f5a3f0ed687bd03f0cb464612dc23408