VDB
CVE-2020-17437
CVE-2020-17437
PUBLISHED
An issue was discovered in uIP 1.0, as used in Contiki 3.0 and other products. When the Urgent flag is set in a TCP packet, and the stack is configured to ignore the urgent data, the stack attempts to use the value of the Urgent pointer bytes to separate the Urgent data from the normal data, by calculating the offset at which the normal data should be present in the global buffer. However, the length of this offset is not checked; therefore, for large values of the Urgent pointer bytes, the data pointer can point to memory that is way beyond the data buffer in uip_process in uip.c.
EPSS 0.26% · 49.7th percentile
Risk Scores
EPSS Score
0.26%
49.7th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:Pro:16.04:LTS | open-iscsi | 2.0.873+git0.3b4b4500-14ubuntu3.3, *, * |
| Ubuntu:Pro:18.04:LTS | open-iscsi | 2.0.874-5ubuntu2.4, 2.0.874-5ubuntu2.6, 2.0.874-5ubuntu2.7 |
| Ubuntu:20.04:LTS | open-iscsi | 2.0.874-7.1ubuntu6.1, 2.0.874-7.1ubuntu6.3, 2.0.874-7.1ubuntu6.2 |
Timeline
- Dec 1, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 1, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-17437 third-party-advisory
- https://github.com/open-iscsi/open-iscsi/security/advisories/GHSA-r278-fm99-8rgp third-party-advisory
- https://www.forescout.com/company/resources/amnesia33-how-tcp-ip-stacks-breed-critical-vulnerabilities-in-iot-ot-and-it-devices/ third-party-advisory
- https://ubuntu.com/security/notices/USN-6259-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-17437 third-party-advisory