GSD-2021-1000177 openvswitch: fix stack OOB read while fragmenting IPv4 packets
An out-of-bounds read in the Linux kernel's Open vSwitch module during IPv4 fragmentation can lead to information disclosure or denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1000177?
GSD-2021-1000177 is a memory corruption vulnerability in Kernel, published on 31 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
openvswitch: fix stack OOB read while fragmenting IPv4 packets
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.4.118 by commit 490ad0a2390442d0a7b8c00972a83dbb09cab142, it was introduced in version v4.16 by commit d52e5a7e7ca49457dd31fc8b42fb7c0d58a31221. For more details please see the references link.
Which versions are affected by GSD-2021-1000177?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000177?
No fix has been published for GSD-2021-1000177 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is GSD-2021-1000177 being exploited?
There is no known exploitation of GSD-2021-1000177 in the wild and no public exploit code.