CVE-2020-17443 Integer overflow in n/a
An integer overflow in picoTCP's ICMPv6 echo reply handling allows remote attackers to cause a denial of service via malformed packets.
- 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-2020-17443?
CVE-2020-17443 is a high-severity vulnerability in n/a, published on 11 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in picoTCP 1.7.0. The code for creating an ICMPv6 echo replies doesn't check whether the ICMPv6 echo request packet's size is shorter than 8 bytes. If the size of the incoming ICMPv6 request packet is shorter than this, the operation that calculates the size of the ICMPv6 echo replies has an integer wrap around, leading to memory corruption and, eventually, Denial-of-Service in pico_icmp6_send_echoreply_not_frag in pico_icmp6.c.
Which versions are affected by CVE-2020-17443?
It affects 1 product.
Products include Altran Picotcp.
How do I fix CVE-2020-17443?
No fix has been published for CVE-2020-17443 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-17443 being exploited?
There is no known exploitation of CVE-2020-17443 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-gj9f-3v8v-xvvr.