PT-2015-6432 · Wpa Supplicant+2 · Hostapd+3

Kostya Kortchinsky · Published 2015-06-01 · Updated 2024-06-15 · CVE-2015-4146

Positive Technologies (AI Summary)

CVSS v2.0

5.0

Medium

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Name of the Vulnerable Software and Affected Versions hostapd and wpa supplicant versions 1.0 through 2.4

Description The issue concerns the EAP-pwd peer implementation in hostapd and wpa supplicant, where the L (Length) and M (More) flags are not cleared before determining if a response should be fragmented. This allows remote attackers to cause a denial of service (crash) via a crafted message.

Recommendations For hostapd and wpa supplicant versions 1.0 through 2.4, consider applying a patch that clears the L (Length) and M (More) flags before determining response fragmentation to prevent denial of service attacks. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Related Identifiers

ALT-PU-2016-1915

ALT-PU-2016-1916

CVE-2015-4146

DSA-3397-1

OPENSUSE-SU-2024:10499-1

USN-2650-1

Affected Products

Alt Linux

Ubuntu

Hostapd

Wpa Supplicant

References · 63

• https://ubuntu.com/security/notices/USN-2650-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:10499-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2015-12092 · Security Note
• https://security-tracker.debian.org/tracker/source-package/wpa · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1863 · Security Note
• https://bdu.fstec.ru/vul/2015-12095 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2015-4146 · Vendor Advisory
• https://security-tracker.debian.org/tracker/DSA-3397-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2015-12120 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4141 · Security Note
• https://osv.dev/vulnerability/CVE-2015-4146 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2015-4146 · Vendor Advisory
• https://osv.dev/vulnerability/USN-2650-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-4145 · Vendor Advisory
• https://errata.altlinux.org/ALT-PU-2016-1915 · Vendor Advisory