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CVE-2020-29509

Published: 14 December 2020

The encoding/xml package in Go (all versions) does not correctly preserve the semantics of attribute namespace prefixes during tokenization round-trips, which allows an attacker to craft inputs that behave in conflicting ways during different stages of processing in affected downstream applications.

Notes

AuthorNote
mdeslaur
Packages built using golang need to be rebuilt once the
vulnerability has been fixed. This CVE entry does not
list packages that need rebuilding outside of the main
repository or the Ubuntu variants with PPA overlays.

as of 2021-08-10, there likely won't be a fix for this issue
by the upstream go developers

Priority

Medium

Cvss 3 Severity Score

5.6

Score breakdown

Status

Package Release Status
golang
Launchpad, Ubuntu, Debian
impish Does not exist

bionic Does not exist

focal Does not exist

groovy Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

hirsute Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

golang-1.6
Launchpad, Ubuntu, Debian
impish Does not exist

xenial Deferred

jammy Does not exist

kinetic Does not exist

lunar Does not exist

bionic Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

trusty Does not exist

upstream Needs triage

golang-1.8
Launchpad, Ubuntu, Debian
impish Does not exist

bionic Deferred

jammy Does not exist

kinetic Does not exist

lunar Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

golang-1.9
Launchpad, Ubuntu, Debian
impish Does not exist

bionic Deferred

jammy Does not exist

kinetic Does not exist

lunar Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

golang-1.10
Launchpad, Ubuntu, Debian
impish Does not exist

upstream Needs triage

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic Deferred

trusty Deferred

xenial Deferred

jammy Does not exist

kinetic Does not exist

lunar Does not exist

golang-1.14
Launchpad, Ubuntu, Debian
impish Does not exist

upstream Needs triage

trusty Does not exist

bionic Does not exist

hirsute Ignored
(end of life)
groovy Ignored
(end of life)
focal Deferred

jammy Does not exist

kinetic Does not exist

lunar Does not exist

xenial Does not exist

golang-1.13
Launchpad, Ubuntu, Debian
upstream Needs triage

trusty Does not exist

hirsute Ignored
(end of life)
groovy Ignored
(end of life)
focal Deferred

kinetic Ignored
(end of life, was deferred)
jammy Deferred

impish Ignored
(end of life)
xenial Deferred
(2021-02-04)
lunar Does not exist

bionic Deferred

golang-1.15
Launchpad, Ubuntu, Debian
hirsute Ignored
(end of life)
groovy Ignored
(end of life)
bionic Does not exist

focal Does not exist

impish Ignored
(end of life)
trusty Does not exist

upstream Needs triage

xenial Does not exist

Severity score breakdown

Parameter Value
Base score 5.6
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality Low
Integrity impact Low
Availability impact Low
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L