CVE Vulnerability

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.

3.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.4 / Impact : 4.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

Scope

6.3 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 1 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

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

Configuration 1

cpe:2.3:a:gnu:binutils:*:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
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 05:15

Updated : 2023-02-12 10:15

NVD link : CVE-2021-20197

Mitre link : CVE-2021-20197

Products Affected

Binutils

Gnu

CWE
CWE-59