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.
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Affected Vendors & Products
References
History
Wed, 03 Dec 2025 15:15:00 +0000
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Status: PUBLISHED
Assigner: redhat
Published: 2021-03-26T16:47:20.000Z
Updated: 2025-12-03T15:08:21.724Z
Reserved: 2020-12-17T00:00:00.000Z
Link: CVE-2021-20197
Updated: 2024-08-03T17:30:07.480Z
Status : Modified
Published: 2021-03-26T17:15:12.920
Modified: 2025-12-03T15:15:46.777
Link: CVE-2021-20197