~ / search / GHSA-2f5j-3mhq-xv58

GHSA-2f5j-3mhq-xv58

Double free in sys-info

Source: GitHub Advisory Database (reviewed) Critical CVE-2020-36434

Packages

EcosystemPackageAffectedFixed in
crates.io sys-info < 0.8.0 0.8.0

Details

As written in the advisory (Markdown source, shown as plain text).

Affected versions of sys-info use a static, global, list to store temporary disk information while running. The function that cleans up this list, DFCleanup, assumes a single threaded environment and will try to free the same memory twice in a multithreaded environment. This results in consistent double-frees and segfaults when calling sys_info::disk_info from multiple threads at once. The issue was fixed by moving the global variable into a local scope.

References

External links from the advisory. They lead to third-party sites.