CVE-2013-2779 Denial of service in n/a
Remote attackers can cause a denial of service on Cisco ASR routers by sending fragmented IPv6 MVPN packets when the MLRE feature is enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2013-2779?
CVE-2013-2779 is a high-severity denial of service vulnerability in Cisco Ios Xe, published on 11 Apr 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Cisco IOS XE 3.4 before 3.4.5S, and 3.5 through 3.7 before 3.7.1S, on 1000 series Aggregation Services Routers (ASR) does not properly implement the Cisco Multicast Leaf Recycle Elimination (MLRE) feature, which allows remote attackers to cause a denial of service (card reload) via fragmented IPv6 MVPN (aka MVPNv6) packets, aka Bug ID CSCub34945, a different vulnerability than CVE-2013-1164.
Weakness: CWE-20
Which versions are affected by CVE-2013-2779?
It affects 9 products.
Products include Cisco Asr 1001, Cisco Asr 1002, Cisco Asr 1002-X, Cisco Asr 1002 Fixed Router, Cisco Asr 1004, Cisco Asr 1006 and 3 more.
How do I fix CVE-2013-2779?
No fix has been published for CVE-2013-2779 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2013-2779 being exploited?
There is no known exploitation of CVE-2013-2779 in the wild and no public exploit code.
Other vulnerabilities in Cisco Ios Xe
Sources
Also known as GHSA-42fj-5wgr-vp3x.