Vulnerability · Published Mar 31, 2021 · Assigned by mitre

CVE-2021-28994

High 7.5

In plain English

A high-severity security flaw in the kopanocore package (Ubuntu). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.0% (higher than 81% of all known vulnerabilities).

Severity (CVSS NVD)7.5High

Exploit odds (30 days)2.0%top 18.7% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

kopano-ical (formerly zarafa-ical) in Kopano Groupware Core through 8.7.16, 9.x through 9.1.0, 10.x through 10.0.7, and 11.x through 11.0.1 and Zarafa 6.30.x through 7.2.x allows memory exhaustion via long HTTP headers.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Ubuntu:22.04:LTS	kopanocore	no fix listed	UBUNTU-CVE-2021-28994

Affected products (as reported)

Vendor	Product	Versions
n/a	n/a	n/a

References

https://www.openwall.com/lists/oss-security/2021/03/19/6 x_refsource_MISC
[oss-security] 20210401 Re: kopano-core 11.0.1: Remote DoS by memory exhaustion mailing-list, x_refsource_MLIST
[oss-security] 20210425 Re: kopano-core 11.0.1.77: Remote DoS with out-of-bounds access mailing-list, x_refsource_MLIST