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CVE-2021-26951 — Out of bounds write in calamine — CVE Details

CRITICAL

Out of bounds write in calamine

Published August 25, 2021Updated November 8, 2023Source: osv

Summary

An issue was discovered in the calamine crate before 0.17.0 for Rust. It allows attackers to overwrite heap-memory locations because Vec::set_len is used without proper memory claiming, and this uninitialized memory is used for a user-provided Read operation, as demonstrated by Sectors::get.

Advisory Timeline

  • First published August 25, 2021 (1874 days ago).
  • Last revised November 8, 2023 — 804 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Cargo
Update calamine to 0.17.0 or later
cargo update -p calamine --precise 0.17.0

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: crates.io (1).

PackageEcosystemAffectedFixed In
calamine
crates.io
All versions0.17.0

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-787
    Out-of-bounds WriteMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

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

References

Frequently Asked Questions

What is CVE-2021-26951?
Out of bounds write in calamine This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2021-26951?
CVE-2021-26951 affects calamine. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2021-26951 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-ppqp-78xx-3r38
RUSTSEC-2021-0015

Related CVEs

More crates.io advisories

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