Vulnerability · Published Dec 11, 2020 · Assigned by mitre
CVE-2020-17441
Critical 9.1
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 7.0% (higher than 94% of all known vulnerabilities).
Severity (CVSS NVD)9.1Critical
Exploit odds (30 days)7.0%top 5.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
An issue was discovered in picoTCP 1.7.0. The code for processing the IPv6 headers does not validate whether the IPv6 payload length field is equal to the actual size of the payload, which leads to an Out-of-Bounds read during the ICMPv6 checksum calculation, resulting in either Denial-of-Service or Information Disclosure. This affects pico_ipv6_extension_headers and pico_checksum_adder (in pico_ipv6.c and pico_frame.c).
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