Vulnerability · Published Dec 11, 2020 · Assigned by mitre
CVE-2020-24339
High 7.5
In plain English
A high-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 2.8% (higher than 86% of all known vulnerabilities).
Severity (CVSS NVD)7.5High
Exploit odds (30 days)2.8%top 13.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
An issue was discovered in picoTCP and picoTCP-NG 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 reads that lead to Denial-of-Service.
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