Link Following The advisory has been revoked - it doesn't affect any version of package mingw64-binutils (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL8-MINGW64BINUTILS-1351512
- published26 Jul 2021
- disclosed7 Jan 2021
Introduced: 7 Jan 2021
CVE-2021-20197 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:8.
NVD Description
Note: Versions mentioned in the description apply only to the upstream mingw64-binutils package and not the mingw64-binutils package as distributed by RHEL.
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
- https://security.netapp.com/advisory/ntap-20210528-0009/
- https://access.redhat.com/security/cve/CVE-2021-20197
- https://bugzilla.redhat.com/show_bug.cgi?id=1913743
- https://sourceware.org/bugzilla/show_bug.cgi?id=26945
- https://access.redhat.com/errata/RHSA-2021:4364
- https://security.gentoo.org/glsa/202208-30