CVE-2018-19591

libc6: In the GNU C Library (aka glibc or libc6) through 2.28, attempting to resolve a crafted hostname via getaddrinfo() le...

CVE-2018-19591 is fixed in 19 products on 1 platform, first by glibc-source 2.27-3ubuntu1.2, released April 30, 2020. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
n/a
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0553
92nd percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
glibc-source · Ubuntu 18.04.6 LTS (bionic) 2.27-3ubuntu1.2 glibc-source 2.27-3ubuntu1.2 Apr 30, 2020
libc-bin · Ubuntu 18.04.6 LTS (bionic) 2.27-3ubuntu1.2 libc-bin 2.27-3ubuntu1.2 Apr 30, 2020
libc-dev-bin · Ubuntu 18.04.6 LTS (bionic) 2.27-3ubuntu1.2 libc-dev-bin 2.27-3ubuntu1.2 Apr 30, 2020
libc6 · Ubuntu 18.04.6 LTS (bionic) 2.27-3ubuntu1.2 libc6 2.27-3ubuntu1.2 Apr 30, 2020
libc6-amd64 · Ubuntu 18.04.6 LTS (bionic) 2.27-3ubuntu1.2 libc6-amd64 2.27-3ubuntu1.2 Apr 30, 2020
libc6-armel · Ubuntu 18.04.6 LTS (bionic) 2.27-3ubuntu1.2 libc6-armel 2.27-3ubuntu1.2 Apr 30, 2020
libc6-dev-amd64 · Ubuntu 18.04.6 LTS (bionic) 2.27-3ubuntu1.2 libc6-dev-amd64 2.27-3ubuntu1.2 Apr 30, 2020
libc6-dev-armel · Ubuntu 18.04.6 LTS (bionic) 2.27-3ubuntu1.2 libc6-dev-armel 2.27-3ubuntu1.2 Apr 30, 2020
libc6-dev-i386 · Ubuntu 18.04.6 LTS (bionic) 2.27-3ubuntu1.2 libc6-dev-i386 2.27-3ubuntu1.2 Apr 30, 2020
libc6-dev-s390 · Ubuntu 18.04.6 LTS (bionic) 2.27-3ubuntu1.2 libc6-dev-s390 2.27-3ubuntu1.2 Apr 30, 2020
libc6-dev-x32 · Ubuntu 18.04.6 LTS (bionic) 2.27-3ubuntu1.2 libc6-dev-x32 2.27-3ubuntu1.2 Apr 30, 2020
libc6-i386 · Ubuntu 18.04.6 LTS (bionic) 2.27-3ubuntu1.2 libc6-i386 2.27-3ubuntu1.2 Apr 30, 2020
libc6-pic · Ubuntu 18.04.6 LTS (bionic) 2.27-3ubuntu1.2 libc6-pic 2.27-3ubuntu1.2 Apr 30, 2020
libc6-s390 · Ubuntu 18.04.6 LTS (bionic) 2.27-3ubuntu1.2 libc6-s390 2.27-3ubuntu1.2 Apr 30, 2020
libc6-x32 · Ubuntu 18.04.6 LTS (bionic) 2.27-3ubuntu1.2 libc6-x32 2.27-3ubuntu1.2 Apr 30, 2020
locales · Ubuntu 18.04.6 LTS (bionic) 2.27-3ubuntu1.2 locales 2.27-3ubuntu1.2 Apr 30, 2020
locales-all · Ubuntu 18.04.6 LTS (bionic) 2.27-3ubuntu1.2 locales-all 2.27-3ubuntu1.2 Apr 30, 2020
multiarch-support · Ubuntu 18.04.6 LTS (bionic) 2.27-3ubuntu1.2 multiarch-support 2.27-3ubuntu1.2 Apr 30, 2020
nscd · Ubuntu 18.04.6 LTS (bionic) 2.27-3ubuntu1.2 nscd 2.27-3ubuntu1.2 Apr 30, 2020

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