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Use After Free Affecting glibc-devel package, versions <2.31-9.3.2

Severity

 Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating

    Threat Intelligence

    EPSS
    1.39% (87th percentile)

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  • Snyk ID SNYK-SLES153-GLIBCDEVEL-2663296
  • published 14 Apr 2022
  • disclosed 8 Dec 2021
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Introduced: 8 Dec 2021

CVE-2021-33574 Open this link in a new tab
CWE-416 Open this link in a new tab

How to fix?

Upgrade SLES:15.3 glibc-devel to version 2.31-9.3.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc-devel package and not the glibc-devel package as distributed by SLES. See How to fix? for SLES:15.3 relevant fixed versions and status.

The mq_notify function in the GNU C Library (aka glibc) versions 2.32 and 2.33 has a use-after-free. It may use the notification thread attributes object (passed through its struct sigevent parameter) after it has been freed by the caller, leading to a denial of service (application crash) or possibly unspecified other impact.

References

CVSS Scores

version 3.1
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NVD

9.8 critical
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
Expand this section

SUSE

5.9 medium
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Red Hat

5.9 medium