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Ubuntu 15.10 USN-2808-1 Critical: wpa_supplicant Denial Of Service

ubuntu
Calendar Grey November 10, 2015
Scroller Ubuntu
Ubuntu Security Notice USN-2809-1 highlights vulnerabilities in OpenSSH and OpenSSL impacting multiple versions.
Several security issues were fixed in wpa_supplicant and hostapd.

Summary

Several security issues were fixed in wpa_supplicant and hostapd.

Software Description:

- wpa: client support for WPA and WPA2

Details:

It was discovered that wpa_supplicant incorrectly handled WMM Sleep Mode

Response frame processing. A remote attacker could use this issue to

perform broadcast/multicast packet injections, or cause a denial of

service. (CVE-2015-5310)

It was discovered that wpa_supplicant and hostapd incorrectly handled

certain EAP-pwd messages. A remote attacker could use this issue to cause a

denial of service. (CVE-2015-5314, CVE-2015-5315)

It was discovered that wpa_supplicant incorrectly handled certain EAP-pwd

Confirm messages. A remote attacker could use this issue to cause a

denial of service. This issue only applied to Ubuntu 15.10. (CVE-2015-5316)

Topics%20covered

Topics Covered

security advisory denial of service critical ubuntu wpa_supplicant hostapd

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 15.10:
  hostapd                         2.4-0ubuntu3.2
  wpasupplicant                   2.4-0ubuntu3.2

Ubuntu 15.04:
  hostapd                         2.1-0ubuntu7.3
  wpasupplicant                   2.1-0ubuntu7.3

Ubuntu 14.04 LTS:
  hostapd                         2.1-0ubuntu1.4
  wpasupplicant                   2.1-0ubuntu1.4

After a standard system update you need to reboot your computer to make
all the necessary changes.

References

https://ubuntu.com/security/notices/USN-2808-1

CVE-2015-5310, CVE-2015-5314, CVE-2015-5315, CVE-2015-5316

Severity
critical
Lowest
Low
Medium
High
Critical

November 10, 2015

Topics%20covered

Topics Covered

security advisory denial of service critical ubuntu wpa_supplicant hostapd

Package Information

https://launchpad.net/ubuntu/+source/wpa/2.4-0ubuntu3.2
https://launchpad.net/ubuntu/+source/wpa/2.1-0ubuntu7.3
https://launchpad.net/ubuntu/+source/wpa/2.1-0ubuntu1.4

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