Denial of service in OpenConnect VPN client
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2013-7098 |
| CWE-ID | CWE-122 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
OpenConnect VPN Client Client/Desktop applications / Other client software |
| Vendor | OpenConnect |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Heap-based buffer overflow
EUVDB-ID: #VU28216
Risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2013-7098
CWE-ID:
CWE-122 - Heap-based Buffer Overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service attack.
The vulnerability exists due to a boundary error when processing connection data with increased MTU on reconnection. A remote attacker can pass specially crafted data to the application, trigger heap-based buffer overflow and perform a denial of service (DoS) attack.
Install updates from vendor's website.
Vulnerable software versionsOpenConnect VPN Client: 5.00 - 5.01
External linkshttp://www.infradead.org/openconnect/changelog.html
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.
