Denial of service in Gitea



| Updated: 2020-07-12
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-13246
CWE-ID CWE-667
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 Gitea
Web applications / Modules and components for CMS

Vendor The Gitea Authors

Security Bulletin

This security bulletin contains information about 1 vulnerabilities.

Updated: 12.07.2020

Changed bulletin status to patched.

1) Improper locking

EUVDB-ID: #VU28186

Risk: High

CVSSv4.0: 7.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2020-13246

CWE-ID: CWE-667 - Improper Locking

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service attack (DoS) on the target system.

The vulnerability exists due to double-locking error. A remote attacker can exploit this vulnerability to cause a deadlock, resulting in a denial of service condition.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Gitea: 1.11.0 - 1.11.5

CPE2.3 External links

https://github.com/go-gitea/gitea/issues/10549
https://github.com/go-gitea/gitea/pull/11438
https://www.youtube.com/watch?v=DmVgADSVS88


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. However, proof of concept for this vulnerability is available.



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