Vulnerability · Published Mar 15, 2021 · Assigned by redhat
CVE-2021-20286
Low 2.7
In plain English
A low-severity security flaw in libnbd. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 67% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)2.7Low
Exploit odds (30 days)1.1%top 33.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A flaw was found in libnbd 1.7.3. An assertion failure in nbd_unlocked_opt_go in ilb/opt.c may lead to denial of service.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | libnbd | 1.10.5-r0 | ALPINE-CVE-2021-20286 |
| Alpine:v3.21 | libnbd | 1.10.5-r0 | ALPINE-CVE-2021-20286 |
| Alpine:v3.22 | libnbd | 1.10.5-r0 | ALPINE-CVE-2021-20286 |
| Alpine:v3.23 | libnbd | 1.10.5-r0 | ALPINE-CVE-2021-20286 |
| Alpine:v3.24 | libnbd | 1.10.5-r0 | ALPINE-CVE-2021-20286 |
| Debian:12 | libnbd | 1.6.2-1 | DEBIAN-CVE-2021-20286 |
| Debian:13 | libnbd | 1.6.2-1 | DEBIAN-CVE-2021-20286 |
| Debian:14 | libnbd | 1.6.2-1 | DEBIAN-CVE-2021-20286 |
Affected products (as reported)
Weakness: CWE-617
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1934727 x_refsource_MISC
- https://gitlab.com/nbdkit/libnbd/-/commit/fb4440de9cc76e9c14bd3ddf3333e78621f40ad0 x_refsource_MISC