Resource exhaustion in Apple Macos
CVE-2023-28320
A denial of service vulnerability exists in curl <v8.1.0 in the way libcurl provides several different backends for resolving host names, selected at build time. If it is built to use the synchronous resolver, it allows name resolves to time-out slow operations using `alarm()` and `siglongjmp()`. When doing this, libcurl used a global buffer that was not mutex protected and a multi-threaded application might therefore crash or otherwise misbehave.
Vulnerability class: DoS (Denial of Service)
EPSS: 0.027 (84.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support@hackerone.com (Exploit, Patch, Third Party Advisory)
- support@hackerone.com (Third Party Advisory)
- support@hackerone.com (Third Party Advisory)
- support@hackerone.com (Third Party Advisory)
- support@hackerone.com (Third Party Advisory)
- support@hackerone.com (mailing-list, Mailing List, Third Party Advisory)
- support@hackerone.com (mailing-list, Mailing List, Third Party Advisory)
- support@hackerone.com (mailing-list, Mailing List, Third Party Advisory)
- support@hackerone.com (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-28320?
- CVE-2023-28320 is a medium-severity vulnerability in Apple Macos, classified under Uncontrolled Resource Consumption. CVSS score: 5.9/10. Published 2023-05-26.
- How severe is CVE-2023-28320?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2023-28320 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.