CVE-2023-4806

Published on: Not Yet Published

Last Modified on: 09/22/2023 01:44:00 PM UTC

CVE-2023-4806

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

Certain versions of Glibc from Gnu contain the following vulnerability:

A flaw was found in glibc. In an extremely rare situation, the getaddrinfo function may access memory that has been freed, resulting in an application crash. This issue is only exploitable when a NSS module implements only the _nss_*_gethostbyname2_r and _nss_*_getcanonname_r hooks without implementing the _nss_*_gethostbyname3_r hook. The resolved name should return a large number of IPv6 and IPv4, and the call to the getaddrinfo function should have the AF_INET6 address family with AI_CANONNAME, AI_ALL and AI_V4MAPPED as flags.

  • CVE-2023-4806 has been assigned by URL Logo seca[email protected] to track the vulnerability - currently rated as HIGH severity.

CVSS3 Score: 7.5 - HIGH

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

CVE References

Description Tags ⓘ Link
cve-details access.redhat.com
text/html
 URL Logo MISC access.redhat.com/security/cve/CVE-2023-4806
2237782 – (CVE-2023-4806) CVE-2023-4806 glibc: potential use-after-free in getaddrinfo() bugzilla.redhat.com
text/html
 URL Logo MISC bugzilla.redhat.com/show_bug.cgi?id=2237782
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Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationGnuGlibc2.33AllAllAll
Operating
System		RedhatEnterprise Linux7.0AllAllAll
Operating
System		RedhatEnterprise Linux8.0AllAllAll
Operating
System		RedhatEnterprise Linux9.0AllAllAll
  • cpe:2.3:a:gnu:glibc:2.33:*:*:*:*:*:*:*:
  • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*:
  • cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*:
  • cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*:
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