Glibc: stack read overflow in getaddrinfo in no-aaaa mode
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.5epss 1.7%
exploitation probability
1.7%top 24% of all CVEs
observed exploitation
nono source reports it
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:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H
Affected products
Red Hat · Red Hat Enterprise Linux 6Red Hat · Red Hat Enterprise Linux 7Red Hat · Red Hat Enterprise Linux 8Red Hat · Red Hat Enterprise Linux 9References
https://access.redhat.com/errata/RHSA-2023:5453https://access.redhat.com/errata/RHSA-2023:5455https://access.redhat.com/security/cve/CVE-2023-4527https://bugzilla.redhat.com/show_bug.cgi?id=2234712https://cert-portal.siemens.com/productcert/html/ssa-082556.htmlhttps://cert-portal.siemens.com/productcert/html/ssa-831302.htmlhttps://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://security.gentoo.org/glsa/202310-03https://security.netapp.com/advisory/ntap-20231116-0012/http://www.openwall.com/lists/oss-security/2023/09/25/1