CVE Vulnerabilities

CVE-2021-29935

Use After Free

Published: Apr 01, 2021 | Modified: Nov 21, 2024
CVSS 3.x
7.3
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS 2.x
7.5 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu

An issue was discovered in the rocket crate before 0.4.7 for Rust. uri::Formatter can have a use-after-free if a user-provided function panics.

Weakness

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.

Affected Software

Name Vendor Start Version End Version
Rocket Rocket * 0.4.7 (excluding)

Potential Mitigations

References