medium6.3
CVE-2021-20197
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.
Impact
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
| Vendor | Product | Affected versions |
|---|---|---|
| Gnu | Binutils | through 2.35 |
| Redhat | Enterprise Linux | Version 8.0 |
| Netapp | Cloud Backup | All versions |
| Netapp | Ontap Select Deploy Administration Utility | All versions |
| Netapp | Solidfire \& Hci Management Node | All versions |
| Broadcom | Brocade Fabric Operating System Firmware | All versions |
Weakness classification
References
- NVD record
- CVE.org record
- https://bugzilla.redhat.com/show_bug.cgi?id=1913743
- https://security.gentoo.org/glsa/202208-30
- https://security.netapp.com/advisory/ntap-20210528-0009/
- https://sourceware.org/bugzilla/show_bug.cgi?id=26945
- https://bugzilla.redhat.com/show_bug.cgi?id=1913743
- https://security.gentoo.org/glsa/202208-30
- https://security.netapp.com/advisory/ntap-20210528-0009/
- https://sourceware.org/bugzilla/show_bug.cgi?id=26945