Use After Free in Apple macOS
CVE-2023-28319
A use after free vulnerability exists in curl <v8.1.0 in the way libcurl offers a feature to verify an SSH server's public key using a SHA 256 hash. When this check fails, libcurl would free the memory for the fingerprint before it returns an error message containing the (now freed) hash. This flaw risks inserting sensitive heap-based data into the error message that might be shown to users or otherwise get leaked and revealed.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.025 (84.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.025 · newest: 0.025 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- hackerone.com/reports/1913733 (Exploit, Patch, Third Party Advisory)
- security.netapp.com/advisory/ntap-20230609-0009/ (Third Party Advisory)
- support.apple.com/kb/HT213843 (Third Party Advisory)
- support.apple.com/kb/HT213844 (Third Party Advisory)
- support.apple.com/kb/HT213845 (Third Party Advisory)
- seclists.org/fulldisclosure/2023/Jul/52 (mailing-list, Mailing List, Third Party Advisory)
- seclists.org/fulldisclosure/2023/Jul/48 (mailing-list, Mailing List, Third Party Advisory)
- seclists.org/fulldisclosure/2023/Jul/47 (mailing-list, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/202310-12 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-28319?
- CVE-2023-28319 is a high-severity vulnerability in Apple macOS, classified under Use After Free. CVSS score: 7.5/10. Published 2023-05-26.
- How severe is CVE-2023-28319?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2023-28319 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.