Crowd Data Center and Server update for jetty-io
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-28165 |
| CWE-ID | CWE-400 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Crowd Data Center Server applications / Other server solutions Crowd Server applications / Directory software, identity management |
| Vendor | Atlassian |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Resource exhaustion
EUVDB-ID: #VU51876
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-28165
CWE-ID:
CWE-400 - Resource exhaustion
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources when processing large TLS frames. A remote attacker can send specially crafted data to the server, trigger CPU high load and perform a denial of service (DoS) attack.
MitigationInstall update from vendor's website.
Vulnerable software versionsCrowd Data Center: 5.0 - 5.2.3
Crowd: 5.0 - 5.2.3
External linkshttp://jira.atlassian.com/browse/CWD-6257
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
