Buffer overflow in hostapd



| Updated: 2020-07-28
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
 hostapd
Server applications / Remote access servers, VPN

Vendor Jouni Malinen

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU32295

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-2015-4142

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

hostapd: 0.5.5 - 2.4

CPE2.3 External links

https://lists.fedoraproject.org/pipermail/package-announce/2015-November/171401.html
https://lists.fedoraproject.org/pipermail/package-announce/2015-November/172608.html
https://lists.fedoraproject.org/pipermail/package-announce/2015-November/172655.html
https://lists.opensuse.org/opensuse-updates/2015-06/msg00019.html
https://rhn.redhat.com/errata/RHSA-2015-1090.html
https://rhn.redhat.com/errata/RHSA-2015-1439.html
https://w1.fi/security/2015-3/integer-underflow-in-ap-mode-wmm-action-frame.txt
https://www.debian.org/security/2015/dsa-3397
https://www.openwall.com/lists/oss-security/2015/05/09/5
https://www.openwall.com/lists/oss-security/2015/05/31/6
https://www.securitytracker.com/id/1032625
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.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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



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