QID 239529

Date Published: 2021-08-05

QID 239529: Red Hat Update for lasso (RHSA-2021:2989)

The lasso packages provide the Lasso library that implements the Liberty Alliance Single Sign-On standards, including the SAML and SAML2 specifications. It allows handling of the whole life-cycle of SAML-based federations and provides bindings for multiple languages.

Security Fix(es): lasso: XML signature wrapping vulnerability when parsing SAML responses (CVE-2021-28091)

Affected Products:

Red Hat Enterprise Linux Server 7 x86_64
Red Hat Enterprise Linux Workstation 7 x86_64
Red Hat Enterprise Linux for IBM z Systems 7 s390x
Red Hat Enterprise Linux for Power, big endian 7 ppc64
Red Hat Enterprise Linux for Power, little endian 7 ppc64le

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 - 7.5 severity.
  • CVSS V2 rated as Medium - 5 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-2021:2989 to address this issue and obtain more information.

    Vendor References

    CVEs related to QID 239529

    CVE-2021-28091 |
    Software Advisories
    Advisory ID Software Component Link
    RHSA-2021:2989 Red Hat Enterprise Linux URL Logo access.redhat.com/errata/RHSA-2021:2989?language=en
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