CVE-2023-4527

Published on: Not Yet Published

Last Modified on: 09/22/2023 05:52:00 PM UTC

CVE-2023-4527

Source: Mitre Source: NIST CVE.ORG Print: PDF PDF
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H

Certain versions of Glibc from Gnu contain the following vulnerability:

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.

  • CVE-2023-4527 has been assigned by URL Logo seca[email protected] to track the vulnerability - currently rated as MEDIUM severity.
Vulnerability Patch/Work Around
  • Removing the no-aaaa diagnostic option from /etc/resolv.conf will mitigate this flaw.

CVSS3 Score: 6.5 - MEDIUM

Attack
Vector ⓘ		 Attack
Complexity		 Privileges
Required		 User
Interaction
NETWORK HIGH NONE NONE
Scope Confidentiality
Impact		 Integrity
Impact		 Availability
Impact
UNCHANGED LOW NONE HIGH

CVE References

Description Tags ⓘ Link
cve-details access.redhat.com
text/html
 URL Logo MISC access.redhat.com/security/cve/CVE-2023-4527
2234712 – (CVE-2023-4527) CVE-2023-4527 glibc: Stack read overflow in getaddrinfo in no-aaaa mode bugzilla.redhat.com
text/html
 URL Logo MISC bugzilla.redhat.com/show_bug.cgi?id=2234712
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Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationGnuGlibcAllAllAllAll
Operating
System		RedhatEnterprise Linux8.0AllAllAll
Operating
System		RedhatEnterprise Linux9.0AllAllAll
  • cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*:
  • cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*:
  • cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*:
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