Vulnerability · Published Apr 2, 2021 · Assigned by mitre
CVE-2021-30004
Medium 4.3
In plain English
A medium-severity improper input validation in the hostapd package (Alpine). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.6% (higher than 76% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)1.6%top 23.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
In wpa_supplicant and hostapd 2.9, forging attacks may occur because AlgorithmIdentifier parameters are mishandled in tls/pkcs1.c and tls/x509v3.c.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | hostapd | 2.9-r3 | ALPINE-CVE-2021-30004 |
| Alpine:v3.21 | hostapd | 2.9-r3 | ALPINE-CVE-2021-30004 |
| Alpine:v3.22 | hostapd | 2.9-r3 | ALPINE-CVE-2021-30004 |
| Alpine:v3.23 | hostapd | 2.9-r3 | ALPINE-CVE-2021-30004 |
| Alpine:v3.24 | hostapd | 2.9-r3 | ALPINE-CVE-2021-30004 |
| Alpine:v3.20 | wpa_supplicant | 2.9-r13 | ALPINE-CVE-2021-30004 |
| Alpine:v3.21 | wpa_supplicant | 2.9-r13 | ALPINE-CVE-2021-30004 |
| Alpine:v3.22 | wpa_supplicant | 2.9-r13 | ALPINE-CVE-2021-30004 |
| Alpine:v3.23 | wpa_supplicant | 2.9-r13 | ALPINE-CVE-2021-30004 |
| Alpine:v3.24 | wpa_supplicant | 2.9-r13 | ALPINE-CVE-2021-30004 |
| Debian:12 | wpa | 2:2.10-1 | DEBIAN-CVE-2021-30004 |
| Debian:13 | wpa | 2:2.10-1 | DEBIAN-CVE-2021-30004 |
| Debian:14 | wpa | 2:2.10-1 | DEBIAN-CVE-2021-30004 |
Affected products (as reported)
Weakness: CWE-20 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N