CVE-2020-17438

Description

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.

Risk Information

Base Score
9.8
MODERATE
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
Exploitation Probability
0.821

Associated Vulnerability

VulnerabilityOS Platform
SUSE-SU-2021:0663-1(SUSE Linux Enterprise Server 12-SP5 ) iscsiuio-0.7.8.2-12.27.2.x86_64.rpmLinux
SUSE-SU-2021:0663-1(SUSE Linux Enterprise Server 12-SP5 ) iscsiuio-debuginfo-0.7.8.2-12.27.2.x86_64.rpmLinux
SUSE-SU-2021:0663-1(SUSE Linux Enterprise Server 12-SP5 ) libopeniscsiusr0_2_0-2.0.876-12.27.2.x86_64.rpmLinux
SUSE-SU-2021:0663-1(SUSE Linux Enterprise Server 12-SP5 ) libopeniscsiusr0_2_0-debuginfo-2.0.876-12.27.2.x86_64.rpmLinux
SUSE-SU-2021:0663-1(SUSE Linux Enterprise Server 12-SP5 ) open-iscsi-2.0.876-12.27.2.x86_64.rpmLinux
SUSE-SU-2021:0663-1(SUSE Linux Enterprise Server 12-SP5 ) open-iscsi-debuginfo-2.0.876-12.27.2.x86_64.rpmLinux
SUSE-SU-2021:0663-1(SUSE Linux Enterprise Server 12-SP5 ) open-iscsi-debugsource-2.0.876-12.27.2.x86_64.rpmLinux
SUSE-SU-2021:1164-1(SUSE Linux Enterprise Module for Legacy Software 15-SP3 ) open-iscsi-debuginfo-2.0.876-13.42.1.x86_64.rpmLinux
SUSE-SU-2021:1164-1(SUSE Linux Enterprise Module for Legacy Software 15-SP3 ) open-iscsi-debugsource-2.0.876-13.42.1.x86_64.rpmLinux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234