CVE-2018-19591

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.

Affected Software

Weaknesses

• n/a

ADP Enrichment

CVE Program Container

Additional References

• https://sourceware.org/git/?p=glibc.git%3Ba=blob_plain%3Bf=NEWS%3Bhb=HEAD
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BO7WHN52GFMC5F2I2232GFIPSSXWFV7G/
• http://www.securityfocus.com/bid/106037
• https://sourceware.org/bugzilla/show_bug.cgi?id=23927
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M52KE4YR3GNMHQUOS3DKAGZD5TQ5D5UH/
• https://security.gentoo.org/glsa/201903-09
• http://www.securitytracker.com/id/1042174
• https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Ba=commitdiff%3Bh=d527c860f5a3f0ed687bd03f0cb464612dc23408
• https://security.netapp.com/advisory/ntap-20190321-0003/
• https://security.gentoo.org/glsa/201908-06
• https://usn.ubuntu.com/4416-1/

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: yes
  • Technical Impact: partial

References

• https://sourceware.org/git/?p=glibc.git%3Ba=blob_plain%3Bf=NEWS%3Bhb=HEAD
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BO7WHN52GFMC5F2I2232GFIPSSXWFV7G/
• http://www.securityfocus.com/bid/106037
• https://sourceware.org/bugzilla/show_bug.cgi?id=23927
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M52KE4YR3GNMHQUOS3DKAGZD5TQ5D5UH/
• https://security.gentoo.org/glsa/201903-09
• http://www.securitytracker.com/id/1042174
• https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Ba=commitdiff%3Bh=d527c860f5a3f0ed687bd03f0cb464612dc23408
• https://security.netapp.com/advisory/ntap-20190321-0003/
• https://security.gentoo.org/glsa/201908-06
• https://usn.ubuntu.com/4416-1/

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