Vulnerability Database

289,697

Total vulnerabilities in the database

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. 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.

  • Published: Mar 26, 2021
  • Updated: Apr 14, 2023
  • CVE: CVE-2021-20197
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 6.3
  • AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

CVSS v2:

  • Severity: Low
  • Score: 3.3
  • AV:L/AC:M/Au:N/C:P/I:P/A:N