Vulnerability Details : CVE-2023-38537

A race condition in a network transport subsystem led to a heap use-after-free issue in established or unsilenced incoming audio/video calls that could have resulted in app termination or unexpected control flow with very low probability.
Published 2023-10-04 20:15:10
Updated 2023-10-10 13:05:44
Source Facebook, Inc.
View at NVD,   CVE.org
Vulnerability category: Memory Corruption

Products affected by CVE-2023-38537

Exploit prediction scoring system (EPSS) score for CVE-2023-38537

EPSS FAQ
0.07%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 31 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-38537

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.6
 MEDIUM CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
2.2
3.4
 Facebook, Inc.
5.6
 MEDIUM CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
2.2
3.4
 NIST

CWE ids for CVE-2023-38537

  • The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
    Assigned by: nvd@nist.gov (Primary)
  • If two threads of execution use a resource simultaneously, there exists the possibility that resources may be used while invalid, in turn making the state of execution undefined.
    Assigned by: cve-assign@fb.com (Secondary)
  • The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
    Assigned by: cve-assign@fb.com (Secondary)

References for CVE-2023-38537

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