Vulnerability · Published Dec 11, 2020 · Assigned by mitre
CVE-2020-24338
Critical 9.8
In plain English
A critical-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 37.2% (higher than 99% of all known vulnerabilities).
Severity (CVSS NVD)9.8Critical
Exploit odds (30 days)37.2%top 1.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
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.
Affected products (as reported)
References
- https://www.kb.cert.org/vuls/id/815128 x_refsource_MISC
- https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01 x_refsource_MISC