CVE-2021-27921
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 a BLP 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)
|
|
| trusty |
Not vulnerable
(code not present)
|
|
| upstream |
Released
(8.1.2)
|
|
| xenial |
Not vulnerable
(code not present)
|
|
|
Patches: upstream: https://github.com/python-pillow/Pillow/commit/480f6819b592d7f07b9a9a52a7656c10bbe07442 |
||
|
pillow-python2 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Needs triage
|
|
| groovy |
Ignored
(reached end-of-life)
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
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
|
|
| 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 |