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Out-of-bounds Read Affecting glibc package, versions <2:2.28-225.0.4.ksplice1.el8_8.6

Severity

 Recommended
high

Based on Oracle Linux security rating

    Threat Intelligence

    EPSS
    0.09% (40th percentile)

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  • Snyk ID SNYK-ORACLE8-GLIBC-5954397
  • published 11 Oct 2023
  • disclosed 18 Sep 2023
Report a new vulnerability Found a mistake?

Introduced: 18 Sep 2023

CVE-2023-4527 Open this link in a new tab
CWE-125 Open this link in a new tab

How to fix?

Upgrade Oracle:8 glibc to version 2:2.28-225.0.4.ksplice1.el8_8.6 or higher.
This issue was patched in ELSA-2023-12872.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

A flaw was found in glibc. When the getaddrinfo function is called with the AF_UNSPEC address family and the system is configured with no-aaaa mode via /etc/resolv.conf, a DNS response via TCP larger than 2048 bytes can potentially disclose stack contents through the function returned address data, and may cause a crash.

References

CVSS Scores

version 3.1
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NVD

6.5 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    Low
  • Integrity (I)
    None
  • Availability (A)
    High
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Red Hat

6.5 medium