CVE-2017-8804 Denial of service in n/a
Remote attackers can cause denial of service via crafted UDP packets due to improper handling of buffer deserialization failures in glibc.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-8804?
CVE-2017-8804 is a high-severity denial of service vulnerability in Gnu Glibc, published on 7 May 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The xdr_bytes and xdr_string functions in the GNU C Library (aka glibc or libc6) 2.25 mishandle failures of buffer deserialization, which allows remote attackers to cause a denial of service (virtual memory allocation, or memory consumption if an overcommit setting is not used) via a crafted UDP packet to port 111, a related issue to CVE-2017-8779. NOTE: [Information provided from upstream and references
Weakness: CWE-502
Which versions are affected by CVE-2017-8804?
It affects 1 product.
Products include Gnu Glibc.
How do I fix CVE-2017-8804?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2017-8804 being exploited?
There is no known exploitation of CVE-2017-8804 in the wild and no public exploit code.
Other vulnerabilities in Gnu Glibc
Sources
Also known as GHSA-pgff-5mf5-cw73.