CVE-2013-5503 Denial of service in n/a
Remote attackers can cause denial of service via UDP packets due to memory not being freed in Cisco IOS XR.
- 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-2013-5503?
CVE-2013-5503 is a high-severity denial of service vulnerability in Cisco Ios Xr, published on 2 Oct 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The UDP process in Cisco IOS XR 4.3.1 does not free packet memory upon detecting full packet queues, which allows remote attackers to cause a denial of service (memory consumption) via UDP packets to listening ports, aka Bug ID CSCue69413.
Weakness: CWE-399
Which versions are affected by CVE-2013-5503?
It affects 1 product.
Products include Cisco Ios Xr.
How do I fix CVE-2013-5503?
No fix has been published for CVE-2013-5503 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-2013-5503 being exploited?
There is no known exploitation of CVE-2013-5503 in the wild and no public exploit code.
Other vulnerabilities in Cisco Ios Xr
- CVE-2020-3118 Cisco IOS XR Software Discovery Protocol Format String
- CVE-2020-3569 Cisco IOS XR Software DVMRP Memory Exhaustion
- CVE-2020-3566 Cisco IOS XR Software DVMRP Memory Exhaustion
- CVE-2010-3035 Cisco IOS XR Border Gateway Protocol (BGP) Denial-of-Service
- CVE-2022-20821 Cisco IOS XR Open Port
Sources
Also known as GHSA-rcf2-qf65-j8cp.