Vulnerability · Published Jun 10, 2021 · Assigned by mitre
CVE-2021-34555
High 7.5
In plain English
A high-severity security flaw in the opendmarc package (Alpine). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.7% (higher than 86% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)2.7%top 13.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
OpenDMARC 1.4.1 and 1.4.1.1 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a multi-value From header field.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | opendmarc | 1.4.1.1-r3 | ALPINE-CVE-2021-34555 |
| Alpine:v3.21 | opendmarc | 1.4.1.1-r3 | ALPINE-CVE-2021-34555 |
| Alpine:v3.22 | opendmarc | 1.4.1.1-r3 | ALPINE-CVE-2021-34555 |
| Alpine:v3.23 | opendmarc | 1.4.1.1-r3 | ALPINE-CVE-2021-34555 |
| Alpine:v3.24 | opendmarc | 1.4.1.1-r3 | ALPINE-CVE-2021-34555 |
| Debian:12 | opendmarc | 1.4.0~beta1+dfsg-6 | DEBIAN-CVE-2021-34555 |
| Debian:13 | opendmarc | 1.4.0~beta1+dfsg-6 | DEBIAN-CVE-2021-34555 |
| Debian:14 | opendmarc | 1.4.0~beta1+dfsg-6 | DEBIAN-CVE-2021-34555 |
Affected products (as reported)
References
- https://github.com/trusteddomainproject/OpenDMARC/issues/179 x_refsource_MISC
- https://github.com/trusteddomainproject/OpenDMARC/pull/178 x_refsource_MISC
- FEDORA-2021-889af802f2 vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-0c98725795 vendor-advisory, x_refsource_FEDORA