QID 239316

Date Published: 2021-05-20

QID 239316: Red Hat Update for sudo (RHSA-2021:1723)

The sudo packages contain the sudo utility which allows system administrators to provide certain users with the permission to execute privileged commands, which are used for system management purposes, without having to log in as root.

Security Fix(es): sudo: symbolic link attack in SELinux-enabled sudoedit (CVE-2021-23240) sudo: possible directory existence test due to race condition in sudoedit (CVE-2021-23239)

Affected Products:

Red Hat Enterprise Linux for x86_64 8 x86_64
Red Hat Enterprise Linux for IBM z Systems 8 s390x
Red Hat Enterprise Linux for Power, little endian 8 ppc64le
Red Hat Enterprise Linux for ARM 64 8 aarch64

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

On successful exploitation, it could allow an attacker to execute code.

  • CVSS V3 rated as High - 7.8 severity.
  • CVSS V2 rated as Medium - 4.4 severity.
    • Solution
    Upgrade to the latest packages which contain a patch. Refer to Applying Package Updates to RHEL system for details.

    Refer to Red Hat security advisory RHSA-2021:1723 to address this issue and obtain more information.

    Vendor References

    CVEs related to QID 239316

    CVE-2021-23239 | CVE-2021-23240 |
    Software Advisories
    Advisory ID Software Component Link
    RHSA-2021:1723 Red Hat Enterprise Linux URL Logo access.redhat.com/errata/RHSA-2021:1723?language=en
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