GSD-2023-1000203 ipv6: avoid use-after-free in ip6_fragment()
A use-after-free vulnerability in the Linux kernel IPv6 fragmentation code allows remote attackers to cause a denial of service or potentially execute code.
- 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-2023-1000203?
GSD-2023-1000203 is an use after free vulnerability in Kernel, published on 17 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
ipv6: avoid use-after-free in ip6_fragment()
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 v5.10.159 by commit 8208d7e56b1e579320b9ff3712739ad2e63e1f86, it was introduced in version v4.13 by commit 1758fd4688eb92c796e75bdb1d256dc558ef9581. For more details please see the references link.
Which versions are affected by GSD-2023-1000203?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1000203?
No fix has been published for GSD-2023-1000203 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is GSD-2023-1000203 being exploited?
There is no known exploitation of GSD-2023-1000203 in the wild and no public exploit code.