Buffer overflow in wpa_supplicant (Alpine package)



Published: 2015-06-15
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2015-4142
CWE-ID CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software
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wpa_supplicant (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU32295

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2015-4142

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

Integer underflow in the WMM Action frame parser in hostapd 0.5.5 through 2.4 and wpa_supplicant 0.7.0 through 2.4, when used for AP mode MLME/SME functionality, allows remote attackers to cause a denial of service (crash) via a crafted frame, which triggers an out-of-bounds read.

Mitigation

Install update from vendor's website.

Vulnerable software versions

wpa_supplicant (Alpine package): 2.1-r2 - 2.3-r0

External links

http://git.alpinelinux.org/aports/commit/?id=3aeb57ec96caa3b0c85bc950e5fd36f43bcd48fe
http://git.alpinelinux.org/aports/commit/?id=fe93077fc235073200c471a387c27261bfc20eb7
http://git.alpinelinux.org/aports/commit/?id=8eeb852f99efdce027c392ad0ab29bb684f0ed7d
http://git.alpinelinux.org/aports/commit/?id=23b5bada7760b28f341d923d4549f36b4d9dc50b
http://git.alpinelinux.org/aports/commit/?id=24fe5565c27eed276c793d7e34bdad182efee108
http://git.alpinelinux.org/aports/commit/?id=2b5198b441b22d8c68cd7131be7c5c0bff746a91
http://git.alpinelinux.org/aports/commit/?id=d8639f35f2edbddd0d541d199154f7c5bd5230ee
http://git.alpinelinux.org/aports/commit/?id=d68ca09574357db36d33cace25c2b307dc8759d5
http://git.alpinelinux.org/aports/commit/?id=fd324ccbd51905c0571336037f4b4a09b8480170
http://git.alpinelinux.org/aports/commit/?id=62ecb530d43d5bdf1a68d3509993e48bddfdb5de
http://git.alpinelinux.org/aports/commit/?id=a190cd664abf51fb096ce04c5833b64815b5a23a


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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