CVE-2015-4503
Mozilla: Memory leak in mozTCPSocket to servers (MFSA 2015-97)
Severity
ModerateRed Hat Product Security
CVSS 2.0
Review impact separately from score.
Published · September 22, 2015
Updated · November 21, 2025
Description
The TCP Socket API implementation in Mozilla Firefox before 41.0 mishandles array boundaries that were established with a navigator.mozTCPSocket.open method call and send method calls, which allows remote TCP servers to obtain sensitive information from process memory by reading packet data, as demonstrated by availability of this API in a Firefox OS application.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 2.0 · 4.3AV:N/AC:M/Au:N/C:P/I:N/A:N
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor