CVE-2017-2712 Denial of service in S3300
An attacker can cause Ethernet in the First Mile flapping on Huawei S3300 switches by sending malformed packets, leading to service disruption.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2017-2712?
CVE-2017-2712 is a medium-severity denial of service vulnerability in Huawei Technologies Co., Ltd. S3300, published on 22 Nov 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
S3300 V100R006C05 have an Ethernet in the First Mile (EFM) flapping vulnerability due to the lack of type-length-value (TLV) consistency check. An attacker may craft malformed packets and send them to a device to cause EFM flapping.
Weakness: CWE-417
Which versions are affected by CVE-2017-2712?
It affects 1 product.
Products include Huawei S3300 Firmware.
How do I fix CVE-2017-2712?
No fix has been published for CVE-2017-2712 yet. Limit exposure of the affected software until one is available.
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-2017-2712 being exploited?
There is no known exploitation of CVE-2017-2712 in the wild and no public exploit code.
Sources
Also known as GHSA-v476-qqh9-vxr9.