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CVE-2020-13987

Published: 1 December 2020

An issue was discovered in Contiki through 3.0. An Out-of-Bounds Read vulnerability exists in the uIP TCP/IP Stack component when calculating the checksums for IP packets in upper_layer_chksum in net/ipv4/uip.c.

Notes

AuthorNote
sbeattie
aka FSCT-2020-0009
issue in embedded copy of uIP
mdeslaur
per upstream "iscsiuio only uses uip for network "services",
such as DHCP, ARP, etc, and not for normal TCP/IP
communications"

Priority

Low

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
open-iscsi
Launchpad, Ubuntu, Debian
bionic
Released (2.0.874-5ubuntu2.11+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
focal
Released (2.0.874-7.1ubuntu6.4)
groovy Ignored
(end of life)
hirsute
Released (2.1.3-1ubuntu1)
impish
Released (2.1.3-1ubuntu1)
jammy
Released (2.1.3-1ubuntu1)
kinetic
Released (2.1.3-1ubuntu1)
lunar
Released (2.1.3-1ubuntu1)
trusty Not vulnerable
(code not present)
upstream
Released (2.1.3)
xenial
Released (2.0.873+git0.3b4b4500-14ubuntu3.7+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
Patches:
upstream: https://github.com/open-iscsi/open-iscsi/commit/e2383973cbca64f8e17ed7c4ad98258edfed6644

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H