Unrated severityNVD Advisory· Published Mar 26, 2021· Updated Dec 3, 2025
CVE-2021-20197
CVE-2021-20197
Description
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.
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
3- security.gentoo.org/glsa/202208-30mitrevendor-advisoryx_refsource_GENTOO
- bugzilla.redhat.com/show_bug.cgimitrex_refsource_MISC
- security.netapp.com/advisory/ntap-20210528-0009/mitrex_refsource_CONFIRM
News mentions
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