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CVE-2021-39520

Published: 20 September 2021

An issue was discovered in libjpeg through 2020021. A NULL pointer dereference exists in the function BlockBitmapRequester::PushReconstructedData() located in blockbitmaprequester.cpp. It allows an attacker to cause Denial of Service.

Priority

Medium

CVSS 3 base score: 6.5

Status

Package Release Status
libjpeg
Launchpad, Ubuntu, Debian
Upstream
Released (0.0~git20200925.f145908-1)
Ubuntu 21.10 (Impish Indri) Not vulnerable

Ubuntu 21.04 (Hirsute Hippo) Not vulnerable
(0.0~git20210129.91985dc-1build1)
Ubuntu 20.04 LTS (Focal Fossa) Needs triage

Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(out of standard support)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

libjpeg-turbo
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 21.10 (Impish Indri) Not vulnerable
(code not present)
Ubuntu 21.04 (Hirsute Hippo) Not vulnerable
(code not present)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(code not present)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(code not present)
Ubuntu 16.04 ESM (Xenial Xerus) Not vulnerable
(code not present)
Ubuntu 14.04 ESM (Trusty Tahr) Not vulnerable
(code not present)
libjpeg6b
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 21.10 (Impish Indri) Needs triage

Ubuntu 21.04 (Hirsute Hippo) Needs triage

Ubuntu 20.04 LTS (Focal Fossa) Needs triage

Ubuntu 18.04 LTS (Bionic Beaver) Needs triage

Ubuntu 16.04 ESM (Xenial Xerus) Needs triage

Ubuntu 14.04 ESM (Trusty Tahr) Needs triage

libjpeg9
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 21.10 (Impish Indri) Needs triage

Ubuntu 21.04 (Hirsute Hippo) Needs triage

Ubuntu 20.04 LTS (Focal Fossa) Needs triage

Ubuntu 18.04 LTS (Bionic Beaver) Needs triage

Ubuntu 16.04 ESM (Xenial Xerus) Needs triage

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Notes

AuthorNote
jdstrand
libjpeg-turbo is a fork of libjpeg8
mdeslaur
file doesn't exist in libjpeg-turbo

References

Bugs