Buffer overflow in PPP

1) Buffer overflow

EUVDB-ID: #VU32425

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2015-3310

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

Buffer overflow in the rc_mksid function in plugins/radius/util.c in Paul's PPP Package (ppp) 2.4.6 and earlier, when the PID for pppd is greater than 65535, allows remote attackers to cause a denial of service (crash) via a start accounting message to the RADIUS server.

Mitigation

Install update from vendor's website.

Vulnerable software versions

PPP: 2.4.0 - 2.4.6

External links

http://advisories.mageia.org/MGASA-2015-0173.html
http://lists.opensuse.org/opensuse-updates/2015-11/msg00147.html
http://www.debian.org/security/2015/dsa-3228
http://www.mandriva.com/security/advisories?name=MDVSA-2015:222
http://www.securityfocus.com/bid/74163
http://www.ubuntu.com/usn/USN-2595-1
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=782450
http://security.gentoo.org/glsa/201701-50

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.