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CVE-2023-4527

UNKNOWN
Published 2023-09-18T16:32:18.597Z
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CVSS Score

V3.1
6.5
/10
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2023.03.01
0.001
probability
of exploitation in the wild

There is a 0.1% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-01-25
Exploit Probability
Percentile: 0.514
Higher than 51.4% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
LOW
Integrity
NONE
Availability
HIGH

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Red Hat

Red Hat Enterprise Linux 8

Affected Versions:

0:2.28-225.el8_8.6
Red Hat

Red Hat Enterprise Linux 8

Affected Versions:

0:2.28-225.el8_8.6
Red Hat

Red Hat Enterprise Linux 9

Affected Versions:

0:2.34-60.el9_2.7
Red Hat

Red Hat Enterprise Linux 9

Affected Versions:

0:2.34-60.el9_2.7
Red Hat

Red Hat Enterprise Linux 6

Red Hat

Red Hat Enterprise Linux 6

Red Hat

Red Hat Enterprise Linux 7

Red Hat

Red Hat Enterprise Linux 7

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed MODERATE

GHSA-hmf7-f8gf-8f4p

Advisory Details

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.

CVSS Scoring

CVSS Score

5.0

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2023-4527
WEB https://access.redhat.com/errata/RHSA-2023:5453
WEB https://access.redhat.com/errata/RHSA-2023:5455
WEB https://access.redhat.com/security/cve/CVE-2023-4527
WEB https://bugzilla.redhat.com/show_bug.cgi?id=2234712
WEB https://lists.fedoraproject.org/archives/list/[email protected]/message/4DBUQRRPB47TC3NJOUIBVWUGFHBJAFDL
WEB https://lists.fedoraproject.org/archives/list/[email protected]/message/DFG4P76UHHZEWQ26FWBXG76N2QLKKPZA
WEB https://lists.fedoraproject.org/archives/list/[email protected]/message/NDAQWHTSVOCOZ5K6KPIWKRT3JX4RTZUR
WEB https://security.gentoo.org/glsa/202310-03
WEB https://security.netapp.com/advisory/ntap-20231116-0012
WEB http://www.openwall.com/lists/oss-security/2023/09/25/1

Advisory provided by GitHub Security Advisory Database. Published: September 18, 2023, Modified: September 16, 2024

References

https://access.redhat.com/errata/RHSA-2023:5453
https://access.redhat.com/errata/RHSA-2023:5455
https://access.redhat.com/security/cve/CVE-2023-4527
https://bugzilla.redhat.com/show_bug.cgi?id=2234712
Published: 2023-09-18T16:32:18.597Z
Last Modified: 2024-12-03T14:44:48.342Z
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