CVE-2015-8804

x86_64/ecc-384-modp.asm in Nettle before 3.2 does not properly handle carry propagation and produces incorrect output in its implementation of the P-384 NIST…

published February 23, 2016

CVSS
—
EPSS
4%
Percentile
90.3
In the wild
Unconfirmed
What it is

⚠️ An unexpected oversight in the Nettle library affects elliptic curve calculations! This flaw in the x86_64/ecc-384-modp.asm file may not seem urgent, but it can lead to some unpredictable outcomes. 💥 Think of it like a chef who doesn't properly measure ingredients. You might follow the recipe to the letter, but if the chef miscalculates how much salt to add, the dish could end up tasting completely off — and who knows what's wrong with the final banquet? If exploited, this vulnerability could lead to incorrect outputs in cryptographic operations, which might compromise security without clear signs of attack. It's not a bombastic threat, but an attacker could leverage these miscalculations in ways we can’t yet predict. Yikes!

Put simply

Think of it like a chef who doesn't properly measure ingredients. You might follow the recipe to the letter, but if the chef miscalculates how much salt to add, the dish could end up tasting completely off — and who knows what's wrong with the final banquet? This vulnerability arises from improper carry propagation in the implementation of the P-384 NIST elliptic curve within the Nettle library, specifically in the x86_64 assembly code. This means that calculations may not perform as expected, potentially leading to security implications.

What to do

If exploited, this vulnerability could lead to incorrect outputs in cryptographic operations, which might compromise security without clear signs of attack. It's not a bombastic threat, but an attacker could leverage these miscalculations in ways we can’t yet predict. Yikes! To mitigate risks, update Nettle to version 3.2 or later, where this issue is resolved. Regularly review cryptographic libraries for updates and ensure any applications using Nettle are patched. You've got this! Stay proactive and keep your cryptographic foundations strong. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.03947 · 90.3th percentile
Published
2016-02-23T19:00Z
EPSS history
Timeline
  • 23 FEB 19:00Z
    x86_64/ecc-384-modp.asm in Nettle before 3.2 does not properly handle carry propagation and produces incorrect output in its implementation of the P-384 NIST…
    cvelistv5