CVE-2023-4527
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-4527
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-4527.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2023-4527
- Downstream
- Related
- Published
- 2023-09-18T17:15:55Z
- Modified
- 2025-07-01T15:10:42.597335Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H CVSS Calculator
- Summary
- [none]
- 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.
- References
-
- https://access.redhat.com/errata/RHSA-2023:5453
- https://access.redhat.com/errata/RHSA-2023:5455
- https://security.gentoo.org/glsa/202310-03
- https://security.netapp.com/advisory/ntap-20231116-0012/
- http://www.openwall.com/lists/oss-security/2023/09/25/1
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4DBUQRRPB47TC3NJOUIBVWUGFHBJAFDL/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DFG4P76UHHZEWQ26FWBXG76N2QLKKPZA/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDAQWHTSVOCOZ5K6KPIWKRT3JX4RTZUR/
- https://bugzilla.redhat.com/show_bug.cgi?id=2234712
- https://access.redhat.com/security/cve/CVE-2023-4527
- https://security-tracker.debian.org/tracker/CVE-2023-4527
Affected packages
Debian:12 / glibc
Package
- Name
- glibc
- Purl
- pkg:deb/debian/glibc?arch=source
Debian:13 / glibc
Package
- Name
- glibc
- Purl
- pkg:deb/debian/glibc?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed2.37-9