CVE-2021-20197
Medium
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.
SeverityMedium
CVSS6.3
Exploit probability—
Product
Gnu Binutils
PublishedMar 26, 2021
First seenMar 26, 2021
Weakness typeCWE-59Improper link resolution
How to fix
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gnu binutils | v ≤ 2.35 | — |
| redhat enterprise_linux | 8.0 | — |
| netapp cloud_backup | No range specified | — |
| netapp ontap_select_deploy_administration_utility | No range specified | — |
| netapp solidfire_\&_hci_management_node | No range specified | — |
| broadcom brocade_fabric_operating_system_firmware | No range specified | — |
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