GHSA-fjx5-qpf4-xjf2

Suggest an improvement
Source
https://github.com/advisories/GHSA-fjx5-qpf4-xjf2
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/04/GHSA-fjx5-qpf4-xjf2/GHSA-fjx5-qpf4-xjf2.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-fjx5-qpf4-xjf2
Aliases
Published
2023-04-17T16:32:26Z
Modified
2024-09-23T16:34:09Z
Summary
Parsing borsh messages with ZST which are not-copy/clone is unsound
Details

Affected versions of borsh cause undefined behavior when zero-sized-types (ZST) are parsed and the Copy/Clone traits are not implemented/derived. For instance if 1000 instances of a ZST are deserialized, and the ZST is not copy (this can be achieved through a singleton), then accessing/writing to deserialized data will cause a segmentation fault.

There is currently no way for borsh to read data without also providing a Rust type. Therefore, if you are not using ZST for serialization, then you are not affected by this issue.

Database specific
{
    "nvd_published_at": null,
    "cwe_ids": [],
    "severity": "MODERATE",
    "github_reviewed": true,
    "github_reviewed_at": "2023-04-17T16:32:26Z"
}
References

Affected packages

crates.io / borsh

Package

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.0.0-alpha.1

Database specific

{
    "last_known_affected_version_range": "<= 0.10.3"
}