The WPS UPnP function in hostapd, when using WPS AP, and wpa_supplicant, when using WPS external registrar (ER), 0.7.0 through 2.4 allows remote attackers to cause a denial of service (crash) via a negative chunk length, which triggers an out-of-bounds read or heap-based buffer overflow.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2015-4141 from the MITRE CVE dictionary dictionary and NIST NVD.
Not vulnerable. This issue did not affect the versions of wpa_supplicant as shipped with Red Hat Enterprise Linux versions 5, 6, and 7.
NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.
Base Score | 2.9 |
---|---|
Base Metrics | AV:A/AC:M/Au:N/C:N/I:N/A:P |
Access Vector | Adjacent Network |
Access Complexity | Medium |
Authentication | None |
Confidentiality Impact | None |
Integrity Impact | None |
Availability Impact | Partial |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
Platform | Package | State |
---|---|---|
Red Hat Enterprise Linux 7 | wpa_supplicant | Not affected |
Red Hat Enterprise Linux 6 | wpa_supplicant | Not affected |
Red Hat Enterprise Linux 5 | wpa_supplicant | Not affected |