CVE-2017-17513 Command injection in n/a
Remote attackers can execute arbitrary commands via argument injection in TeX Live by exploiting unvalidated BROWSER environment variable handling.
- 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
- None listed
What is CVE-2017-17513?
CVE-2017-17513 is a high-severity command injection vulnerability in n/a, published on 14 Dec 2017. 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
TeX Live through 20170524 does not validate strings before launching the program specified by the BROWSER environment variable, which might allow remote attackers to conduct argument-injection attacks via a crafted URL, related to linked_scripts/context/stubs/unix/mtxrun, texmf-dist/scripts/context/stubs/mswin/mtxrun.lua, and texmf-dist/tex/luatex/lualibs/lualibs-os.lua.
Weakness: CWE-74
Which versions are affected by CVE-2017-17513?
It affects 1 product.
Products include Tug Tex Live.
How do I fix CVE-2017-17513?
No fix has been published for CVE-2017-17513 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2017-17513 being exploited?
There is no known exploitation of CVE-2017-17513 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2017-17513, ECHO-e69f-bf97-7e4d, GHSA-5fq9-qwgg-j7pg, UBUNTU-CVE-2017-17513.