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CVE-2021-3121

Published: 11 January 2021

An issue was discovered in GoGo Protobuf before 1.3.2. plugin/unmarshal/unmarshal.go lacks certain index validation, aka the "skippy peanut butter" issue.

Notes

AuthorNote
sbeattie
still need to sort which of all of the golang sources that
build-depend on golang-gogoprotobuf-dev and
golang-github-gogo-protobuf-dev need to be rebuilt.
not sure how the 1.2.1 -> 1.3.0 transition plays out
here, it may be that some build dependencies had not been built
yet with 1.3 .pb.go files, and rebuilding them in hirsute might
trigger that. See https://github.com/gogo/protobuf#release-v130
for discussion on potential compatibility issues

Priority

Medium

Cvss 3 Severity Score

8.6

Score breakdown

Status

Package Release Status
golang-gogoprotobuf
Launchpad, Ubuntu, Debian
jammy
Released (1.3.2-1)
impish
Released (1.3.2-1)
bionic Needs triage

focal Needs triage

groovy Ignored
(end of life)
hirsute
Released (1.3.2-1)
trusty Does not exist

upstream
Released (1.3.2-1)
xenial Needs triage

kinetic
Released (1.3.2-1)
lunar
Released (1.3.2-1)
mantic
Released (1.3.2-1)
Patches:
upstream: https://github.com/gogo/protobuf/commit/b03c65ea87cdc3521ede29f62fe3ce239267c1bc

Severity score breakdown

Parameter Value
Base score 8.6
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality Low
Integrity impact Low
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H