Vulnerability identifier: #VU32294

Vulnerability risk: Medium

CVSSv3.1: 5.5 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2015-1863

CWE-ID: CWE-122

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
wpa_supplicant
Server applications / Encryption software

Vendor: Jouni Malinen

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in Heap-based buffer overflow in wpa_supplicant 1.0 through 2.4. A remote attacker can use crafted SSID information in a management frame when creating or updating P2P entries. to trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Update to version 2.4.0.

Vulnerable software versions

wpa_supplicant: 1.0 - 2.4

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External links
http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00000.html
http://packetstormsecurity.com/files/131598/Android-wpa_supplicant-Heap-Overflow.html
http://rhn.redhat.com/errata/RHSA-2015-1090.html
http://seclists.org/fulldisclosure/2015/Apr/82
http://security.alibaba.com/blog/blog.htm?spm=0.0.0.0.p1ECc3&id=19
http://w1.fi/security/2015-1/wpa_supplicant-p2p-ssid-overflow.txt
http://www.debian.org/security/2015/dsa-3233
http://www.securityfocus.com/archive/1/535353/100/0/threaded
http://www.securityfocus.com/bid/74296
http://www.securitytracker.com/id/1032192
http://www.ubuntu.com/usn/USN-2577-1
http://security.gentoo.org/glsa/201606-17

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.