Heap-based buffer overflow in wpa_supplicant



| Updated: 2020-08-04
Risk Medium
Patch available NO
Number of vulnerabilities 1
CVE-ID CVE-2015-4141
CWE-ID CWE-122
Exploitation vector Network
Public exploit N/A
Vulnerable software
 wpa_supplicant
Server applications / Encryption software

hostapd
Server applications / Remote access servers, VPN

Opensuse
Operating systems & Components / Operating system

Vendor Jouni Malinen
SUSE

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Heap-based buffer overflow

EUVDB-ID: #VU33633

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2015-4141

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error in 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. A remote attacker can use a negative chunk length 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

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

wpa_supplicant: 0.7.0 - 2.4

hostapd: 0.7.0 - 2.4

Opensuse: 0.7.0 - 13.2

CPE2.3 External links

https://lists.opensuse.org/opensuse-updates/2015-06/msg00019.html
https://w1.fi/security/2015-2/wps-upnp-http-chunked-transfer-encoding.txt
https://www.debian.org/security/2015/dsa-3397
https://www.openwall.com/lists/oss-security/2015/05/09/4
https://www.openwall.com/lists/oss-security/2015/05/31/6
https://www.ubuntu.com/usn/USN-2650-1
https://security.gentoo.org/glsa/201606-17


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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



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