CVE-2020-24338 Memory corruption in n/a
Out-of-bounds writes in picoTCP DNS decompression allow remote attackers to execute arbitrary code or cause denial of service.
- 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-2020-24338?
CVE-2020-24338 is a critical memory corruption 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 through 1.7.0. The DNS domain name record decompression functionality in pico_dns_decompress_name() in pico_dns_common.c does not validate the compression pointer offset values with respect to the actual data present in a DNS response packet, causing out-of-bounds writes that lead to Denial-of-Service and Remote Code Execution.
Weakness: CWE-787
Which versions are affected by CVE-2020-24338?
It affects 1 product.
Products include Altran Picotcp.
How do I fix CVE-2020-24338?
No fix has been published for CVE-2020-24338 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-2020-24338 being exploited?
There is no known exploitation of CVE-2020-24338 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-c2mh-8c2g-xwr6.