CVE-2020-17440

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Summary

CVECVE-2020-17440
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-12-11 23:15:00 UTC
Updated2020-12-15 15:06:00 UTC
DescriptionAn issue was discovered in uIP 1.0, as used in Contiki 3.0 and other products. The code that parses incoming DNS packets does not validate that domain names present in the DNS responses have '\0' termination. This results in errors when calculating the offset of the pointer that jumps over domain name bytes in DNS response packets when a name lacks this termination, and eventually leads to dereferencing the pointer at an invalid/arbitrary address, within newdata() and parse_name() in resolv.c.

Risk And Classification

Problem Types: NVD-CWE-Other

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Contiki-os Contiki 3.0 All All All
Operating System Contiki-os Contiki 3.0 All All All
Application Uip Project Uip 1.0 All All All
Application Uip Project Uip 1.0 All All All

References

ReferenceSourceLinkTags
VU#815128 - Embedded TCP/IP stacks have memory corruption vulnerabilities MISC www.kb.cert.org Third Party Advisory, US Government Resource
Multiple Embedded TCP/IP Stacks | CISA MISC us-cert.cisa.gov Third Party Advisory, US Government Resource
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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