| Release Date: | 2023-09-12 | |
| Impact: | Moderate | What is this? |
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.
See more information about CVE-2023-4527 from MITRE CVE dictionary and NIST NVD
NOTE: The following CVSS metrics and score provided are preliminary and subject to review.
| Base Score: | 6.5 |
| Vector String: | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H |
| Version: | 3.0 |
| Attack Vector: | Network |
| Attack Complexity: | High |
| Privileges Required: | None |
| User Interaction: | None |
| Scope: | Unchanged |
| Confidentiality Impact: | Low |
| Integrity Impact: | None |
| Availability Impact: | High |
| Platform | Errata | Release Date |
| Oracle Linux version 8 (glibc) | ELSA-2023-12872 | 2023-10-12 |
| Oracle Linux version 8 (glibc) | ELSA-2023-5455 | 2023-12-19 |
| Oracle Linux version 9 (glibc) | ELSA-2023-12873 | 2023-10-12 |
| Oracle Linux version 9 (glibc) | ELSA-2023-5453 | 2023-10-10 |
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