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CVE-2020-13987

Publication date 1 December 2020

Last updated 24 July 2024

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
open-iscsi 23.04 lunar
Fixed 2.1.3-1ubuntu1
22.10 kinetic
Fixed 2.1.3-1ubuntu1
22.04 LTS jammy
Fixed 2.1.3-1ubuntu1
21.10 impish
Fixed 2.1.3-1ubuntu1
21.04 hirsute
Fixed 2.1.3-1ubuntu1
20.10 groovy Ignored end of life
20.04 LTS focal
Fixed 2.0.874-7.1ubuntu6.4
18.04 LTS bionic
16.04 LTS xenial
14.04 LTS trusty
Not affected

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Notes

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"

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
open-iscsi

Severity score breakdown

Parameter Value
Base score 7.5 · High
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