CVE-2023-4527Medium· 6.5▾ SunlitA 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 discl…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 35.8 · likelihood 0.3 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
1.7%
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.
glibc (all versions)glibc (all versions)glibc (all versions)glibc (all versions)compat-glibcglibccompat-glibcglibcRefer to the linked advisories for vendor-supplied fixes and affected version ranges.
Removing the no-aaaa diagnostic option from /etc/resolv.conf will mitigate this flaw.
Connected by shared product, vendor, weakness, or advisory.
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