CVE-2020-7464 Other in FreeBSD
A programming error in the FreeBSD ure(4) driver allows attackers to inject packets across VLAN boundaries by exploiting incorrect packet length reporting.
- 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-2020-7464?
CVE-2020-7464 is a medium-severity vulnerability in Freebsd Freebsd, published on 26 Mar 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In FreeBSD 12.2-STABLE before r365730, 11.4-STABLE before r365738, 12.1-RELEASE before p10, 11.4-RELEASE before p4, and 11.3-RELEASE before p14, a programming error in the ure(4) device driver caused some Realtek USB Ethernet interfaces to incorrectly report packets with more than 2048 bytes in a single USB transfer as having a length of only 2048 bytes. An adversary can exploit this to cause the driver to misinterpret part of the payload of a large packet as a separate packet, and thereby inject packets across security boundaries such as VLANs.
Weakness: CWE-74
Which versions are affected by CVE-2020-7464?
It affects 1 product.
Products include Freebsd Freebsd.
How do I fix CVE-2020-7464?
No fix has been published for CVE-2020-7464 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-7464 being exploited?
There is no known exploitation of CVE-2020-7464 in the wild and no public exploit code.
Other vulnerabilities in Freebsd Freebsd
Sources
Also known as GHSA-m6mg-fqh8-x8m9.