Vulnerability · Published Mar 11, 2021 · Assigned by mitre
CVE-2021-27919
Medium 5.5
In plain English
A medium-severity security flaw in the go package (Alpine). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.5% (higher than 75% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)1.5%top 25.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
archive/zip in Go 1.16.x before 1.16.1 allows attackers to cause a denial of service (panic) upon attempted use of the Reader.Open API for a ZIP archive in which ../ occurs at the beginning of any filename.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | go | 1.16.2-r0 | ALPINE-CVE-2021-27919 |
| Alpine:v3.21 | go | 1.16.2-r0 | ALPINE-CVE-2021-27919 |
| Alpine:v3.22 | go | 1.16.2-r0 | ALPINE-CVE-2021-27919 |
| Alpine:v3.23 | go | 1.16.2-r0 | ALPINE-CVE-2021-27919 |
| Alpine:v3.24 | go | 1.16.2-r0 | ALPINE-CVE-2021-27919 |
| Go | stdlib | 1.16.1 | GO-2021-0067 |
Affected products (as reported)
References
- https://groups.google.com/g/golang-announce/c/MfiLYjG-RAw x_refsource_MISC
- FEDORA-2021-6a3024b3fd vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-e71b05ba7b vendor-advisory, x_refsource_FEDORA
- GLSA-202208-02 vendor-advisory, x_refsource_GENTOO