CVE-2016-10739 Other in n/a

Medium 5.3 Published Updated

The glibc getaddrinfo function incorrectly parses IPv4 addresses with trailing whitespace, potentially allowing attackers to bypass input validation checks.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2016-10739?

CVE-2016-10739 is a medium-severity vulnerability in Gnu Glibc, published on 21 Jan 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the GNU C Library (aka glibc or libc6) through 2.28, the getaddrinfo function would successfully parse a string that contained an IPv4 address followed by whitespace and arbitrary characters, which could lead applications to incorrectly assume that it had parsed a valid string, without the possibility of embedded HTTP headers or other potentially dangerous substrings.

Weakness: CWE-20

Which versions are affected by CVE-2016-10739?

It affects 2 products.

Linux distribution packages (40)
glibc Red Hat:enterprise_linux:7::clientAll versions0:2.17-292.el7
glibc-common Red Hat:enterprise_linux:7::clientAll versions0:2.17-292.el7
glibc-debuginfo Red Hat:enterprise_linux:7::clientAll versions0:2.17-292.el7
glibc-debuginfo-common Red Hat:enterprise_linux:7::clientAll versions0:2.17-292.el7
glibc-devel Red Hat:enterprise_linux:7::clientAll versions0:2.17-292.el7
glibc-headers Red Hat:enterprise_linux:7::clientAll versions0:2.17-292.el7
glibc-static Red Hat:enterprise_linux:7::clientAll versions0:2.17-292.el7
glibc-utils Red Hat:enterprise_linux:7::clientAll versions0:2.17-292.el7
nscd Red Hat:enterprise_linux:7::clientAll versions0:2.17-292.el7
glibc Red Hat:enterprise_linux:7::computenodeAll versions0:2.17-292.el7
glibc-common Red Hat:enterprise_linux:7::computenodeAll versions0:2.17-292.el7
glibc-debuginfo Red Hat:enterprise_linux:7::computenodeAll versions0:2.17-292.el7
glibc-debuginfo-common Red Hat:enterprise_linux:7::computenodeAll versions0:2.17-292.el7
glibc-devel Red Hat:enterprise_linux:7::computenodeAll versions0:2.17-292.el7
glibc-headers Red Hat:enterprise_linux:7::computenodeAll versions0:2.17-292.el7
glibc-static Red Hat:enterprise_linux:7::computenodeAll versions0:2.17-292.el7
glibc-utils Red Hat:enterprise_linux:7::computenodeAll versions0:2.17-292.el7
nscd Red Hat:enterprise_linux:7::computenodeAll versions0:2.17-292.el7
glibc Red Hat:enterprise_linux:7::serverAll versions0:2.17-292.el7
glibc-common Red Hat:enterprise_linux:7::serverAll versions0:2.17-292.el7
glibc-debuginfo Red Hat:enterprise_linux:7::serverAll versions0:2.17-292.el7
glibc-debuginfo-common Red Hat:enterprise_linux:7::serverAll versions0:2.17-292.el7
glibc-devel Red Hat:enterprise_linux:7::serverAll versions0:2.17-292.el7
glibc-headers Red Hat:enterprise_linux:7::serverAll versions0:2.17-292.el7
glibc-static Red Hat:enterprise_linux:7::serverAll versions0:2.17-292.el7
glibc-utils Red Hat:enterprise_linux:7::serverAll versions0:2.17-292.el7
nscd Red Hat:enterprise_linux:7::serverAll versions0:2.17-292.el7
glibc Red Hat:enterprise_linux:7::workstationAll versions0:2.17-292.el7
glibc-common Red Hat:enterprise_linux:7::workstationAll versions0:2.17-292.el7
glibc-debuginfo Red Hat:enterprise_linux:7::workstationAll versions0:2.17-292.el7
glibc-debuginfo-common Red Hat:enterprise_linux:7::workstationAll versions0:2.17-292.el7
glibc-devel Red Hat:enterprise_linux:7::workstationAll versions0:2.17-292.el7
glibc-headers Red Hat:enterprise_linux:7::workstationAll versions0:2.17-292.el7
glibc-static Red Hat:enterprise_linux:7::workstationAll versions0:2.17-292.el7
glibc-utils Red Hat:enterprise_linux:7::workstationAll versions0:2.17-292.el7
nscd Red Hat:enterprise_linux:7::workstationAll versions0:2.17-292.el7
compat-libpthread-nonshared Red Hat:enterprise_linux:8::appstreamAll versions0:2.28-72.el8
glibc-debuginfo Red Hat:enterprise_linux:8::appstreamAll versions0:2.28-72.el8
glibc-debuginfo-common Red Hat:enterprise_linux:8::appstreamAll versions0:2.28-72.el8
glibc-utils Red Hat:enterprise_linux:8::appstreamAll versions0:2.28-72.el8

Products include Gnu Glibc, Opensuse Leap.

How do I fix CVE-2016-10739?

Apply the vendor's patch.

Is CVE-2016-10739 being exploited?

There is no known exploitation of CVE-2016-10739 in the wild and no public exploit code.

All Gnu Glibc vulnerabilities

Sources

Also known as DEBIAN-CVE-2016-10739, GHSA-8r2c-r3r4-4hcp, RHSA-2019:2118, RHSA-2019:3513, SUSE-SU-2019:0903-1, SUSE-SU-2023:0015-1 and 2 more.

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