Gentoo update for GnuTLS



Published: 2017-10-16
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2017-7507
CWE-ID CWE-476
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Gentoo Linux
Operating systems & Components / Operating system

Vendor Gentoo

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Null pointer dereference

EUVDB-ID: #VU7481

Risk: Medium

CVSSv3.1: 5.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-7507

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to NULL pointer dereference while decoding a status response TLS extension with valid contents. A remote attacker can send specially crafted status_request extension in a ClientHello message to cause the GnuTLS server application to crash.

Successful exploitation of the vulnerability results in denial of service.

Mitigation

Update the affected packages.
net-libs/gnutls to version: 3.5.13

Vulnerable software versions

Gentoo Linux: All versions

CPE2.3 External links

http://security.gentoo.org/glsa/201710-15


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.



###SIDEBAR###