Intel

AIKIDO-2025-10317

jiter is vulnerable to Reliance on Undefined, Unspecified, or Implementation-Defined Behavior

Reliance on Undefined, Unspecified, or Implementation-Defined Behavior Pre-CVE
Found by Aikido Intel before public disclosure or CVE publication.
Published May 20, 2025

44

Medium Risk

This Affects:

Rustjiter
0.2.0 - 0.9.1
Fixed in 0.10.0
Are you affected? Scan for Free

TL;DR

Affected versions of this package contain a soundness issue in functions that allowed skipping UTF-8 validation via an is_ascii flag. This could lead to memory safety violations if non-ASCII strings were incorrectly marked as ASCII. An attacker could exploit this vulnerability by supplying a malicious string containing non-ASCII Unicode, triggering undefined behavior that could result in panic, crashes, or memory corruption.

Who does this affect?

You are affected if you are using a version that falls within the vulnerable range.

Background info

jiter is vulnerable to Reliance on Undefined, Unspecified, or Implementation-Defined Behavior in versions 0.2.0 - 0.9.1.

How to fix this

Upgrade the jiter library to the patch version.