Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
None
Privileges Required
None
Attack Vector
Network
0

CVE-2023-4527

Disclosure Date: September 18, 2023 •
CVE-2023-4527 CVSS v3 Base Score: 6.5
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

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.

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CVSS V3 Severity and Metrics
Base Score:
6.5 Medium
Impact Score:
4.2
Exploitability Score:
2.2
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H
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

General Information

Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
Red Hat Enterprise Linux 8 not down converted
Red Hat Enterprise Linux 8 not down converted
Red Hat Enterprise Linux 9 not down converted
Red Hat Enterprise Linux 9 not down converted
Red Hat Enterprise Linux 6 not down converted
Red Hat Enterprise Linux 6 not down converted
Red Hat Enterprise Linux 7 not down converted
Red Hat Enterprise Linux 7 not down converted
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown

Vendors

  • fedoraproject,
  • gnu,
  • netapp,
  • redhat

Products

  • codeready linux builder eus 9.2,
  • codeready linux builder eus for power little endian 9.0 ppc64le,
  • codeready linux builder eus for power little endian eus 9.2 ppc64le,
  • codeready linux builder for arm64 9.0 aarch64,
  • codeready linux builder for arm64 eus 9.2 aarch64,
  • codeready linux builder for ibm z systems 9.0 s390x,
  • codeready linux builder for ibm z systems eus 9.2 s390x,
  • enterprise linux 8.0,
  • enterprise linux 9.0,
  • enterprise linux eus 8.8,
  • enterprise linux eus 9.2,
  • enterprise linux for arm 64 9.0 aarch64,
  • enterprise linux for arm 64 eus 9.2 aarch64,
  • enterprise linux for ibm z systems 8.0 s390x,
  • enterprise linux for ibm z systems eus 8.8 s390x,
  • enterprise linux for ibm z systems eus s390x 9.2,
  • enterprise linux for ibm z systems s390x 9.2,
  • enterprise linux for power little endian 8.0 ppc64le,
  • enterprise linux for power little endian 9.2 ppc64le,
  • enterprise linux for power little endian eus 8.8 ppc64le,
  • enterprise linux for power little endian eus 9.2 ppc64le,
  • enterprise linux server aus 9.2,
  • enterprise linux server for power little endian update services for sap solutions 9.2 ppc64le,
  • enterprise linux tus 8.8,
  • fedora 37,
  • fedora 38,
  • fedora 39,
  • glibc,
  • h300s firmware -,
  • h410c firmware -,
  • h410s firmware -,
  • h500s firmware -,
  • h700s firmware -
Technical Analysis