Vulnerability Monitor

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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

2021-03-26T17:15:12.920

Last Modified

2024-11-21T05:46:06.807

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.3 (MEDIUM)

CVSSv2 Vector

AV:L/AC:M/Au:N/C:P/I:P/A:N

  • Access Vector: LOCAL
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: NONE
Exploitability Score

3.4

Impact Score

4.9

Weaknesses
  • Type: Primary
    CWE-59
  • Type: Secondary
    CWE-59
    CWE-362
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application gnu binutils ≤ 2.35 Yes
Operating System redhat enterprise_linux 8.0 Yes
Application netapp cloud_backup - Yes
Application netapp ontap_select_deploy_administration_utility - Yes
Application netapp solidfire_\&_hci_management_node - Yes
Operating System broadcom brocade_fabric_operating_system_firmware - Yes
References