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.
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
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
Redhat Information
No data.