Vulnerability · Published Jul 27, 2021 · Assigned by mitre
CVE-2021-28966
High 7.5
In plain English
A high-severity security flaw in the ruby package (Alpine). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 58.0% (higher than 99.1% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)58.0%top 0.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
In Ruby through 3.0 on Windows, a remote attacker can submit a crafted path when a Web application handles a parameter with TmpDir.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | ruby | 2.7.3-r0 | ALPINE-CVE-2021-28966 |
| Alpine:v3.21 | ruby | 2.7.3-r0 | ALPINE-CVE-2021-28966 |
| Alpine:v3.22 | ruby | 2.7.3-r0 | ALPINE-CVE-2021-28966 |
| Alpine:v3.23 | ruby | 2.7.3-r0 | ALPINE-CVE-2021-28966 |
| Alpine:v3.24 | ruby | 2.7.3-r0 | ALPINE-CVE-2021-28966 |
| RubyGems | tmpdir | 0.1.2 | GHSA-46f2-3v63-3xrp |
Affected products (as reported)
References
- https://hackerone.com/reports/1131465 x_refsource_MISC
- https://security.netapp.com/advisory/ntap-20210902-0004/ x_refsource_CONFIRM