CVE-2020-24338

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 16.48% Top 10%
Third-Party Advisory cisa.gov Third-Party Advisory cert.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.kb.cert.org/vuls/id/815128 third party advisory us government resource
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01 third party advisory us government resource

Frequently Asked Questions

What is the severity of CVE-2020-24338?
CVE-2020-24338 has been scored as a critical severity vulnerability.
How to fix CVE-2020-24338?
To fix CVE-2020-24338, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-24338 being actively exploited in the wild?
It is possible that CVE-2020-24338 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~16% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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