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  5. CVE-2021-26305

CVE-2021-26305: Read of uninitialized memory in cdr

August 25, 2021

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

  • github.com/advisories/GHSA-37jj-wp7g-7wj4
  • github.com/hrektts/cdr-rs
  • github.com/hrektts/cdr-rs/commit/0e6006de464caa331643f86cd2d9ba3b32b09833
  • github.com/hrektts/cdr-rs/issues/10
  • github.com/hrektts/cdr-rs/pull/11
  • nvd.nist.gov/vuln/detail/CVE-2021-26305
  • rustsec.org/advisories/RUSTSEC-2021-0012.html

Code Behaviors & Features

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Affected versions

All versions before 0.2.4

Fixed versions

  • 0.2.4

Solution

Upgrade to version 0.2.4 or above.

Impact 9.8 CRITICAL

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

Learn more about CVSS

Weakness

  • CWE-908: Use of Uninitialized Resource

Source file

cargo/cdr/CVE-2021-26305.yml

Spotted a mistake? Edit the file on GitLab.

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