CVE-2020-17438
published 2020-12-11CVE-2020-17438: An issue was discovered in uIP 1.0, as used in Contiki 3.0 and other products. The code that reassembles fragmented packets fails to properly validate the…
PriorityP264critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
18.54%
96.9th percentile
An issue was discovered in uIP 1.0, as used in Contiki 3.0 and other products. The code that reassembles fragmented packets fails to properly validate the total length of an incoming packet specified in its IP header, as well as the fragmentation offset value specified in the IP header. By crafting a packet with specific values of the IP header length and the fragmentation offset, attackers can write into the .bss section of the program (past the statically allocated buffer that is used for storing the fragmented data) and cause a denial of service in uip_reass() in uip.c, or possibly execute arbitrary code on some target architectures.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| uip_project | uip | — | — |
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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## Archived Content In an effort to keep CISA.gov current, the archive contains outdated information that may not reflect current policy or programs.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-wp96-g7r8-wxf4: An issue was discovered in uIP 1
ghsa_unreviewed·2022-05-24
CVE-2020-17438 [CRITICAL] CWE-787 GHSA-wp96-g7r8-wxf4: 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 reassembles fragmented packets fails to properly validate the total length of an incoming packet specified in its IP header, as well as the fragmentation offset value specified in the IP header. By crafting a packet with specific values of the IP header length and the fragmentation offset, attackers can write into the .bss section of the program (past the statically allocated buffer that is used for storing the fragmented data) and cause a denial of service in uip_reass() in uip.c, or possibly execute arbitrary code on some target architectures.
No detection rules found.
No public exploits indexed.
2020-12-11
Published