CVE-2020-17439
published 2020-12-11CVE-2020-17439: An 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 the incoming…
PriorityP345high8.3CVSS 3.1
AVNACLPRNUINSCCLILAL
EPSS
3.15%
86.3th percentile
An 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 the incoming DNS replies match outgoing DNS queries in newdata() in resolv.c. Also, arbitrary DNS replies are parsed if there was any outgoing DNS query with a transaction ID that matches the transaction ID of an incoming reply. Provided that the default DNS cache is quite small (only four records) and that the transaction ID has a very limited set of values that is quite easy to guess, this can lead to DNS cache poisoning.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| uip_project | uip | — | — |
CVSS provenance
nvdv3.18.3HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
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CISA ICS
Multiple Embedded TCP/IP Stacks
cisa_ics·2020-12-09
Multiple Embedded TCP/IP Stacks
## Archived Content In an effort to keep CISA.gov current, the archive contains outdated information that may not reflect current policy or programs.
ICS Advisory
##
Multiple Embedded TCP/IP Stacks
Last RevisedDecember 09, 2020
Alert CodeICSA-20-343-01
## 1. EXECUTIVE SUMMARY
- CVSS v3 9.8
- ATTENTION: Exploitable remotely/low skill level to exploit
- Vendor: Multiple (open source)
- Equipment: uIP-Contiki-OS, uIP-Contiki-NG, uIP, open-iscsi, picoTCP-NG, picoTCP, FNET, Nut/Net
- Vulnerabilities: Infinite Loop, Integer Wraparound, Out-of-bounds Read, Integer Overflow, Out-of-bounds Write, Improper Input Validation, Improper Null Termination
CISA is aware of a public report, known as “AMNESIA:33” that details vulnerabilities found in mult
GHSA
GHSA-5xvj-fmm7-pv9c: An issue was discovered in uIP 1
ghsa_unreviewed·2022-05-24
CVE-2020-17439 [HIGH] CWE-20 GHSA-5xvj-fmm7-pv9c: An issue was discovered in uIP 1
An 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 the incoming DNS replies match outgoing DNS queries in newdata() in resolv.c. Also, arbitrary DNS replies are parsed if there was any outgoing DNS query with a transaction ID that matches the transaction ID of an incoming reply. Provided that the default DNS cache is quite small (only four records) and that the transaction ID has a very limited set of values that is quite easy to guess, this can lead to DNS cache poisoning.
No detection rules found.
No public exploits indexed.
2020-12-11
Published