CVE-2015-4323 Memory corruption in n/a

Medium 6.1 Published 19 Aug 2015 Updated 6 Aug 2024

Remote attackers can cause a denial of service on Cisco Nexus devices via crafted ARP packets due to a buffer overflow in MTU validation.

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-2015-4323?

CVE-2015-4323 is a medium-severity memory corruption vulnerability in Cisco Nx-Os, published on 19 Aug 2015. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Buffer overflow in Cisco NX-OS on Nexus 1000V devices for VMware vSphere 7.3(0)ZN(0.9); Nexus 3000 devices 6.0(2)U5(1.41), 7.0(3)I2(0.373), and 7.3(0)ZN(0.83); Nexus 4000 devices 4.1(2)E1(1b); Nexus 7000 devices 6.2(14)S1; Nexus 9000 devices 7.3(0)ZN(0.9); and MDS 9000 devices 6.2 (13) and 7.1(0)ZN(91.99) and MDS SAN-OS 7.1(0)ZN(91.99) allows remote attackers to cause a denial of service (device outage) via a crafted ARP packet, related to incorrect MTU validation, aka Bug IDs CSCuv71933, CSCuv61341, CSCuv61321, CSCuu78074, CSCut37060, CSCuv61266, CSCuv61351, CSCuv61358, and CSCuv61366.

Weakness: CWE-119

Which versions are affected by CVE-2015-4323?

It affects 2 products.

Products include Cisco Mds 9000 Nx-Os, Cisco Nx-Os.

How do I fix CVE-2015-4323?

No fix has been published for CVE-2015-4323 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2015-4323 being exploited?

There is no known exploitation of CVE-2015-4323 in the wild and no public exploit code.

All Cisco Nx-Os vulnerabilities

Sources

Also known as GHSA-f846-7hhm-3qxh.