CVE-2019-1010023 Code injection in glibc

Medium 5.4 Published Updated

Attackers can execute arbitrary code and potentially escalate privileges by tricking users into running ldd on malicious ELF files in the GNU C Library.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2019-1010023?

CVE-2019-1010023 is a medium-severity code injection vulnerability in Gnu Glibc, published on 15 Jul 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

GNU Libc current is affected by: Re-mapping current loaded library with malicious ELF file. The impact is: In worst case attacker may evaluate privileges. The component is: libld. The attack vector is: Attacker sends 2 ELF files to victim and asks to run ldd on it. ldd execute code. NOTE: Upstream comments indicate "this is being treated as a non-security bug and no real threat.

Which versions are affected by CVE-2019-1010023?

It affects 1 product.

Products include Gnu Glibc.

How do I fix CVE-2019-1010023?

No fix published yet.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2019-1010023 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-1010023 exists.

All Gnu Glibc vulnerabilities

Sources

Also known as DEBIAN-CVE-2019-1010023, GHSA-x8wp-c333-hv92, MINI-j3rr-48mm-ch3f, MINI-jmmw-4597-rmjp, MINI-q79w-4948-65pp, ROOT-OS-DEBIAN-12-CVE-2019-1010023 and 2 more.

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