Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS00andxLTU3MnctNDM4OM4AA49B

Memory over-allocation in evm crate

Impact

Prior to the patch, when executing specific EVM opcodes related to memory operations that use evm_core::Memory::copy_large, the crate can over-allocate memory when it is not needed, making it possible for an attacker to perform denial-of-service attack.

Patches

The flaw was corrected in commit 19ade85. Users should upgrade to ==0.21.1, ==0.23.1, ==0.24.1, ==0.25.1, >=0.26.1.

Workarounds

None. Please upgrade your evm crate version

References

Fix commit: https://github.com/rust-blockchain/evm/commit/19ade858c430ab13eb562764a870ac9f8506f8dd

For more information

If you have any questions or comments about this advisory:

• Open an issue in evm repo
• Email Wei

Permalink: https://github.com/advisories/GHSA-4jwq-572w-4388
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS00andxLTU3MnctNDM4OM4AA49B
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: 3 months ago
Updated: 3 months ago

CVSS Score: 6.5
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Identifiers: GHSA-4jwq-572w-4388, CVE-2021-29511
References:

• https://github.com/rust-blockchain/evm/security/advisories/GHSA-4jwq-572w-4388
• https://nvd.nist.gov/vuln/detail/CVE-2021-29511
• https://github.com/rust-blockchain/evm/commit/19ade858c430ab13eb562764a870ac9f8506f8dd
• https://github.com/advisories/GHSA-4jwq-572w-4388

Repository: https://github.com/rust-blockchain/evm
Blast Radius: 15.6

Affected Packages