Vulnerability in W1.fi Wpa Supplicant
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.012 (67.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 67.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- W1.fi Wpa Supplicant
- Debian Linux — versions 9.0, 10.0
- Fedoraproject Fedora — versions 32, 33, 34
References
- www.openwall.com/lists/oss-security/2021/02/25/3 (Mailing List, Third Party Advisory, Mitigation)
- w1.fi/security/2021-1/wpa_supplicant-p2p-provision-discovery-processing-vulnera… (Mitigation, Vendor Advisory)
- w1.fi/security/2021-1/0001-P2P-Fix-a-corner-case-in-peer-addition-based-on-PD-R… (Patch, Vendor Advisory)
- www.openwall.com/lists/oss-security/2021/02/27/1 (mailing-list, Mailing List, Third Party Advisory, Mitigation)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.debian.org/debian-lts-announce/2021/03/msg00003.html (mailing-list, Mailing List, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- www.debian.org/security/2021/dsa-4898 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-27803?
- CVE-2021-27803 is a high-severity vulnerability in W1.fi Wpa Supplicant. CVSS score: 7.5/10. Published 2021-02-26.
- How severe is CVE-2021-27803?
- High severity. CVSS v3 base score is 7.5 out of 10.