There is an open race window when writing output in the following utilities in GNU binutils version 2.35 and earlier:ar, objcopy, strip, ranlib. When these utilities are run as a privileged user (presumably as part of a script updating binaries across different users), an unprivileged user can trick these utilities into getting ownership of arbitrary files through a symlink.
References
Link Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1913743 Issue Tracking Patch Third Party Advisory
https://security.gentoo.org/glsa/202208-30 Third Party Advisory
https://security.netapp.com/advisory/ntap-20210528-0009/ Third Party Advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=26945 Issue Tracking Patch Third Party Advisory
History

No history.

cve-icon MITRE Information

Status: PUBLISHED

Assigner: redhat

Published: 2021-03-26T16:47:20

Updated: 2022-08-15T00:12:01

Reserved: 2020-12-17T00:00:00


Link: CVE-2021-20197

JSON object: View

cve-icon NVD Information

Status : Modified

Published: 2021-03-26T17:15:12.920

Modified: 2023-02-12T22:15:16.877


Link: CVE-2021-20197

JSON object: View

cve-icon Redhat Information

No data.