Read of uninitialized memory in cdr · CVE-2021-26305 · GitHub Advisory Database · GitHub

Read of uninitialized memory in cdr

Critical severity GitHub Reviewed Published Aug 25, 2021 to the GitHub Advisory Database • Updated Apr 14, 2023

Package

cdr (Rust)

Affected versions

< 0.2.4

Patched versions

0.2.4

Description

An issue was discovered in Deserializer::read_vec in the cdr crate before 0.2.4 for Rust. A user-provided Read implementation can gain access to the old contents of newly allocated heap memory, violating soundness.

References

Reviewed Aug 19, 2021

Published to the GitHub Advisory Database Aug 25, 2021

Last updated Apr 14, 2023

Severity

Critical

9.8

/ 10

CVSS base metrics

Attack vector

Network

Attack complexity

Low

Privileges required

None

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H