Integer overflow in Altran Picotcp
CVE-2020-17444
An issue was discovered in picoTCP 1.7.0. The routine for processing the next header field (and deducing whether the IPv6 extension headers are valid) doesn't check whether the header extension length field would overflow. Therefore, if it wraps around to zero, iterating through the extension headers will not increment the current data pointer. This leads to an infinite loop and Denial-of-Service in pico_ipv6_check_headers_sequence() in pico_ipv6.c.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.028 (85.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Altran Picotcp
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (US Government Resource, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (US Government Resource, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2020-17444?
- CVE-2020-17444 is a high-severity vulnerability in Altran Picotcp, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2020-12-11.
- How severe is CVE-2020-17444?
- High severity. CVSS v3 base score is 7.5 out of 10.