CVE-2025-29912 CryptoLib Has Heap Buffer Overflow Due to Unsigned Integer Underflow in Crypto_TC_ProcessSecurity
An attacker can cause a heap buffer overflow via integer underflow in CryptoLib, leading to denial of service or remote code execution.
- 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-2025-29912?
CVE-2025-29912 is a high-severity vulnerability in nasa CryptoLib, published on 17 Mar 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
CryptoLib provides a software-only solution using the CCSDS Space Data Link Security Protocol - Extended Procedures (SDLS-EP) to secure communications between a spacecraft running the core Flight System (cFS) and a ground station. In versions 1.3.3 and prior, an unsigned integer underflow in the `Crypto_TC_ProcessSecurity` function of CryptoLib leads to a heap buffer overflow. The vulnerability is triggered when the `fl` (frame length) field in a Telecommand (TC) packet is set to 0. This underflow causes the frame length to be interpreted as 65535, resulting in out-of-bounds memory access. This critical vulnerability can be exploited to cause a denial of service (DoS) or potentially achieve remote code execution. Users of CryptoLib are advised to apply the recommended patch or avoid processing untrusted TC packets until a fix is available.
Which versions are affected by CVE-2025-29912?
It affects 1 product.
Products include Nasa Cryptolib.
How do I fix CVE-2025-29912?
No fix has been published for CVE-2025-29912 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-29912 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-29912 exists.
Other vulnerabilities in nasa CryptoLib
- CVE-2025-30216 CryptoLib Has Heap Overflow in Crypto_TM_ProcessSecurity due to Unchecked Secondary Header Length
- CVE-2025-30356 Heap Buffer Overflow via Incomplete Length Check in `Crypto_TC_ApplySecurity`
- CVE-2025-29909 CryptoLib's Crypto_TC_ApplySecurity() Has a Heap Buffer Overflow Vulnerability
- CVE-2025-29911 CryptoLib Has Heap Buffer Overflow in Crypto_AOS_ProcessSecurity Function
- CVE-2025-29913 CryptoLib's Crypto_TC_Prep_AAD Has Buffer Overflow Due to Integer Underflow
Sources
Also known as GHSA-3f5x-r59x-p8cf.