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.
References
Link Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1913743 Issue Tracking Patch Third Party Advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=26945 Issue Tracking Patch Third Party Advisory
https://security.netapp.com/advisory/ntap-20210528-0009/ Third Party Advisory
https://security.gentoo.org/glsa/202208-30 Third Party Advisory
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Configurations

Configuration 1 (hide)

cpe:2.3:a:gnu:binutils:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*

Configuration 3 (hide)

OR cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:solidfire_\&_hci_management_node:-:*:*:*:*:*:*:*
cpe:2.3:o:broadcom:brocade_fabric_operating_system_firmware:-:*:*:*:*:*:*:*

Information

Published : 2021-03-26 10:15

Updated : 2023-02-12 14:15


NVD link : CVE-2021-20197

Mitre link : CVE-2021-20197


JSON object : View

CWE
CWE-59

Improper Link Resolution Before File Access ('Link Following')

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Products Affected

netapp

  • cloud_backup
  • solidfire_\&_hci_management_node
  • ontap_select_deploy_administration_utility

redhat

  • enterprise_linux

gnu

  • binutils

broadcom

  • brocade_fabric_operating_system_firmware