Description
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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | wpa | 2.3-2.2 | — |
| Debian 13 | wpa | 2.3-2.2 | — |
| Debian 12 | wpa | 2.3-2.2 | — |
| Debian 8 | wpa | 2.3-1+deb8u3 | DSA-3397-1 |
| Debian 7 | wpa | 1.0-3+deb7u3 | DSA-3397-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 6.0 | hostapd | 1:0.6.10-2+squeeze2 | DLA-260-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | wpa | 2.1-0ubuntu1.3 | USN-2650-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | wpa_supplicant | 1:2.0-17.ael7b_1 | RHSA-2015:1090 |
| RHEL 6 | wpa_supplicant | 1:0.7.3-6.el6 | RHSA-2015:1439 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP2 | wpa_supplicant | 2.9-4.20.1 | SUSE-SU-2020:3380-1 |
| SLES 15 SP1 | wpa_supplicant | 2.9-4.20.1 | SUSE-SU-2020:3380-1 |
| SLES 15 | wpa_supplicant | 2.9-4.20.1 | SUSE-SU-2020:3380-1 |
| SLES 12 SP1 | wpa_supplicant | 2.2-14.2 | SUSE-SU-2016:2305-1 |
| SLES 11 SP4 | wpa_supplicant | 0.7.1-6.17.4 | SUSE-SU-2015:2221-1 |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 11 SP3 | wpa_supplicant | 0.7.1-6.17.4 | SUSE-SU-2015:2221-1 |
| SLES for SAP 15 | wpa_supplicant | 2.9-4.20.1 | SUSE-SU-2020:3380-1 |
| SLES for SAP 12 SP1 | wpa_supplicant | 2.2-14.2 | SUSE-SU-2016:2305-1 |
| SLES for SAP 11 SP4 | wpa_supplicant | 0.7.1-6.17.4 | SUSE-SU-2015:2221-1 |
| SLES for SAP 11 SP3 | wpa_supplicant | 0.7.1-6.17.4 | SUSE-SU-2015:2221-1 |
| SLE HPC 15 | wpa_supplicant | 2.9-4.20.1 | SUSE-SU-2020:3380-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | hostapd +1 | 2.6-1.1 | openSUSE-SU-2024:10499-1, openSUSE-SU-2024:10022-1 |
| openSUSE Leap 15.2 | wpa_supplicant | 2.9-lp152.8.3.1 | openSUSE-SU-2020:2059-1 |
| openSUSE Leap 15.1 | wpa_supplicant | 2.9-lp151.5.10.1 | openSUSE-SU-2020:2053-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | wpa_supplicant | 1:2.0-17.el7_1 | ELSA-2015-1090 |
Advisories 13
- RHSA-2015:1439 Red Hat Security Advisory: wpa_supplicant security and enhancement update Red Hat Security Advisories (RHSA) · Jun 27, 2026
- RHSA-2015:1090 Red Hat Security Advisory: wpa_supplicant security and enhancement update Red Hat Security Advisories (RHSA) · Jun 27, 2026
- DSA-3397-1 wpa - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-260-1 hostapd - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-2650-1 wpa, wpasupplicant vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2015:2221-1 Security update for wpa_supplicant SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:2053-1 Security update for wpa_supplicant SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:3380-1 Security update for wpa_supplicant SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:2305-1 Security update for wpa_supplicant SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:2059-1 Security update for wpa_supplicant SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10022-1 hostapd-2.6-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10499-1 wpa_supplicant-2.6-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- ELSA-2015-1090 Important: wpa_supplicant security and enhancement update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jun 11, 2015
References
- [oss-security] 20150531 Re: CVE request: vulnerability in wpa_supplicant and hostapd mailing-list
- FEDORA-2015-cfea96144a vendor-advisory
- RHSA-2015:1439 vendor-advisory
- FEDORA-2015-6f16b5e39e vendor-advisory
- 1032625 vdb-entry
- http://w1.fi/security/2015-3/integer-underflow-in-ap-mode-wmm-action-frame.txt
- [oss-security] 20150509 CVE request: hostapd/wpa_supplicant - Integer underflow in AP mode WMM Action frame processing mailing-list
- DSA-3397 vendor-advisory
- GLSA-201606-17 vendor-advisory
- USN-2650-1 vendor-advisory
- FEDORA-2015-1521e91178 vendor-advisory
- openSUSE-SU-2015:1030 vendor-advisory
- RHSA-2015:1090 vendor-advisory
- https://support.apple.com/kb/HT213258
- 20220516 APPLE-SA-2022-05-16-1 iOS 15.5 and iPadOS 15.5 mailing-list