CVE-2021-27803
Published: 26 February 2021
A vulnerability was discovered in how p2p/p2p_pd.c in wpa_supplicant before 2.10 processes P2P (Wi-Fi Direct) provision discovery requests. It could result in denial of service or other impact (potentially execution of arbitrary code), for an attacker within radio range.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
wpa Launchpad, Ubuntu, Debian |
bionic |
Released
(2:2.6-15ubuntu2.8)
|
| focal |
Released
(2:2.9-1ubuntu4.3)
|
|
| groovy |
Released
(2:2.9-1ubuntu8.2)
|
|
| trusty |
Released
(2.1-0ubuntu1.7+esm4)
|
|
| upstream |
Released
(2:2.9.0-21)
|
|
| xenial |
Released
(2.4-0ubuntu6.8)
|
|
|
Patches: upstream: https://w1.fi/cgit/hostap/commit/src/p2p/p2p_pd.c?id=8460e3230988ef2ec13ce6b69b687e941f6cdb32 upstream: https://w1.fi/security/2021-1/0001-P2P-Fix-a-corner-case-in-peer-addition-based-on-PD-R.patch |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Adjacent |
| Attack complexity | High |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27803
- https://www.openwall.com/lists/oss-security/2021/02/25/3
- https://w1.fi/security/2021-1/wpa_supplicant-p2p-provision-discovery-processing-vulnerability.txt
- http://www.openwall.com/lists/oss-security/2021/02/27/1
- https://ubuntu.com/security/notices/USN-4757-1
- https://ubuntu.com/security/notices/USN-4757-2
- NVD
- Launchpad
- Debian