CVE-2022-4087 iPXE TLS tls.c tls_new_ciphertext information exposure
An attacker can exploit a padding discrepancy in iPXE's TLS implementation to expose sensitive information during network boot processes.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-4087?
CVE-2022-4087 is a low-severity vulnerability in unspecified iPXE, published on 21 Nov 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability was found in iPXE. It has been declared as problematic. This vulnerability affects the function tls_new_ciphertext of the file src/net/tls.c of the component TLS. The manipulation of the argument pad_len leads to information exposure through discrepancy. The name of the patch is 186306d6199096b7a7c4b4574d4be8cdb8426729. It is recommended to apply a patch to fix this issue. VDB-214054 is the identifier assigned to this vulnerability.
Which versions are affected by CVE-2022-4087?
It affects 1 product.
Products include Ipxe Ipxe.
How do I fix CVE-2022-4087?
No fix has been published for CVE-2022-4087 yet. Limit exposure of the affected software until one is available.
Is CVE-2022-4087 being exploited?
There is no known exploitation of CVE-2022-4087 in the wild and no public exploit code.
Sources
Also known as GHSA-cj89-cwcx-m929.