CVE-2011-2549 Denial of service in n/a
Remote attackers can cause a denial of service on Cisco ASR 9000 routers by sending a malicious IPv4 packet, triggering a line-card reload.
- 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-2011-2549?
CVE-2011-2549 is a high-severity denial of service vulnerability in Cisco Ios Xr, published on 28 Jul 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Unspecified vulnerability in Cisco IOS XR 4.1.x before 4.1.1 on Cisco Aggregation Services Routers (ASR) 9000 series devices allows remote attackers to cause a denial of service (line-card reload) via an IPv4 packet, aka Bug ID CSCtr26695.
Which versions are affected by CVE-2011-2549?
It affects 3 products.
Products include Cisco Asr 9006 Router, Cisco Asr 9010 Router, Cisco Ios Xr.
How do I fix CVE-2011-2549?
No fix has been published for CVE-2011-2549 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-2011-2549 being exploited?
There is no known exploitation of CVE-2011-2549 in the wild and no public exploit code.
Sources
Also known as GHSA-hw43-vchf-c8qg.