Vulnerability Details : CVE-2021-27803
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.
Vulnerability category: Denial of service
Exploit prediction scoring system (EPSS) score for CVE-2021-27803
Probability of exploitation activity in the next 30 days: 0.27%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 64 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2021-27803
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Source |
---|---|---|---|---|---|
5.4
|
MEDIUM | AV:A/AC:M/Au:N/C:P/I:P/A:P |
5.5
|
6.4
|
[email protected] |
7.5
|
HIGH | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
1.6
|
5.9
|
[email protected] |
References for CVE-2021-27803
-
https://w1.fi/security/2021-1/wpa_supplicant-p2p-provision-discovery-processing-vulnerability.txt
Mitigation;Vendor Advisory
-
https://lists.fedoraproject.org/archives/list/[email protected]/message/SEHS2CFGH3KCSNPHBHNGN5SGV6QPMLZ4/
Mailing List;Third Party Advisory
-
https://w1.fi/security/2021-1/0001-P2P-Fix-a-corner-case-in-peer-addition-based-on-PD-R.patch
Patch;Vendor Advisory
-
https://lists.debian.org/debian-lts-announce/2021/03/msg00003.html
Mailing List;Third Party Advisory
-
https://www.openwall.com/lists/oss-security/2021/02/25/3
Mailing List;Mitigation;Third Party Advisory
-
http://www.openwall.com/lists/oss-security/2021/02/27/1
Mailing List;Mitigation;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/[email protected]/message/KOGP2VIVVXXQ6CZ2HU4DKGPDB4WR24XF/
Mailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/[email protected]/message/IZGUR5XFHATVXTRAEJMODS7ROYHA56NX/
Mailing List;Third Party Advisory
-
https://www.debian.org/security/2021/dsa-4898
Third Party Advisory
Products affected by CVE-2021-27803
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
- cpe:2.3:a:w1.fi:wpa_supplicant:*:*:*:*:*:*:*:*