CVE-2021-27923
Published: 3 March 2021
Pillow before 8.1.1 allows attackers to cause a denial of service (memory consumption) because the reported size of a contained image is not properly checked for an ICO container, and thus an attempted memory allocation can be very large.
Notes
Author | Note |
---|---|
mdeslaur |
while this is mentioned in the 8.1.1 release notes, it doesn't seem to be mentioned in the CHANGES file, and I can't seem to locate the commits that fix this in 8.1.1 vs 8.1.0 This was actually fixed in 8.1.2. |
Priority
Status
Package | Release | Status |
---|---|---|
pillow
Launchpad, Ubuntu, Debian |
bionic |
Released
(5.1.0-1ubuntu0.5)
|
focal |
Released
(7.0.0-4ubuntu0.3)
|
|
groovy |
Released
(7.2.0-1ubuntu0.2)
|
|
hirsute |
Not vulnerable
(8.1.2-1)
|
|
impish |
Not vulnerable
(8.1.2-1)
|
|
jammy |
Not vulnerable
(8.1.2-1)
|
|
kinetic |
Not vulnerable
(8.1.2-1)
|
|
lunar |
Not vulnerable
(8.1.2-1)
|
|
mantic |
Not vulnerable
(8.1.2-1)
|
|
noble |
Not vulnerable
(8.1.2-1)
|
|
trusty |
Needs triage
|
|
upstream |
Released
(8.1.2)
|
|
xenial |
Released
(3.1.2-0ubuntu1.6)
|
|
Patches:
upstream: https://github.com/python-pillow/Pillow/commit/480f6819b592d7f07b9a9a52a7656c10bbe07442 |
||
pillow-python2
Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
focal |
Needs triage
|
|
groovy |
Ignored
(end of life)
|
|
hirsute |
Does not exist
|
|
impish |
Does not exist
|
|
jammy |
Does not exist
|
|
kinetic |
Does not exist
|
|
lunar |
Does not exist
|
|
mantic |
Does not exist
|
|
noble |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
xenial |
Does not exist
|
|
python-imaging
Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
hirsute |
Does not exist
|
|
impish |
Does not exist
|
|
jammy |
Does not exist
|
|
kinetic |
Does not exist
|
|
lunar |
Does not exist
|
|
mantic |
Does not exist
|
|
noble |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
xenial |
Does not exist
|
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 |