CVE-2021-28676

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-28676
An issue was discovered in Pillow before 8.2.0. For FLI data, FliDecode did not properly check that the block advance was non-zero, potentially leading to an infinite loop on load.

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References
Link Resource
https://github.com/python-pillow/Pillow/commit/bb6c11fb889e6c11b0ee122b828132ee763b5856 Patch
https://github.com/python-pillow/Pillow/pull/5377 Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/07/msg00018.html Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL/ Mailing List
https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-28676-fix-fli-dos Release Notes Third Party Advisory
https://security.gentoo.org/glsa/202107-33 Third Party Advisory
https://github.com/python-pillow/Pillow/commit/bb6c11fb889e6c11b0ee122b828132ee763b5856 Patch
https://github.com/python-pillow/Pillow/pull/5377 Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/07/msg00018.html Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL/ Mailing List
https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-28676-fix-fli-dos Release Notes Third Party Advisory
https://security.gentoo.org/glsa/202107-33 Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
History

21 Nov 2024, 06:00

Type Values Removed Values Added
References () https://github.com/python-pillow/Pillow/commit/bb6c11fb889e6c11b0ee122b828132ee763b5856 - Patch () https://github.com/python-pillow/Pillow/commit/bb6c11fb889e6c11b0ee122b828132ee763b5856 - Patch
References () https://github.com/python-pillow/Pillow/pull/5377 - Third Party Advisory () https://github.com/python-pillow/Pillow/pull/5377 - Third Party Advisory
References () https://lists.debian.org/debian-lts-announce/2021/07/msg00018.html - Third Party Advisory () https://lists.debian.org/debian-lts-announce/2021/07/msg00018.html - Third Party Advisory
References () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL/ - Mailing List () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL/ - Mailing List
References () https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-28676-fix-fli-dos - Release Notes, Third Party Advisory () https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-28676-fix-fli-dos - Release Notes, Third Party Advisory
References () https://security.gentoo.org/glsa/202107-33 - Third Party Advisory () https://security.gentoo.org/glsa/202107-33 - Third Party Advisory

22 Dec 2023, 15:15

Type Values Removed Values Added
References
  • {'url': 'https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL/', 'name': 'FEDORA-2021-77756994ba', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'FEDORA'}
  • () https://github.com/python-pillow/Pillow/commit/bb6c11fb889e6c11b0ee122b828132ee763b5856 - Patch
  • () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL/ - Mailing List

14 Sep 2021, 17:38

Type Values Removed Values Added
References
  • (MLIST) https://lists.debian.org/debian-lts-announce/2021/07/msg00018.html - Third Party Advisory
References (GENTOO) https://security.gentoo.org/glsa/202107-33 - (GENTOO) https://security.gentoo.org/glsa/202107-33 - Third Party Advisory

22 Jul 2021, 13:15

Type Values Removed Values Added
References
  • (GENTOO) https://security.gentoo.org/glsa/202107-33 -

08 Jun 2021, 14:45

Type Values Removed Values Added
References (MISC) https://github.com/python-pillow/Pillow/pull/5377 - (MISC) https://github.com/python-pillow/Pillow/pull/5377 - Third Party Advisory
References (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL/ - (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL/ - Mailing List, Third Party Advisory
References (MISC) https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-28676-fix-fli-dos - (MISC) https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-28676-fix-fli-dos - Release Notes, Third Party Advisory
CVSS v2 : unknown
v3 : unknown 		v2 : 5.0
v3 : 7.5
CPE cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
CWE CWE-835

03 Jun 2021, 03:15

Type Values Removed Values Added
References
  • (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL/ -

02 Jun 2021, 16:28

Type Values Removed Values Added
New CVE
Information

Published : 2021-06-02 16:15

Updated : 2024-11-21 06:00

NVD link : CVE-2021-28676

Mitre link : CVE-2021-28676

CVE.ORG link : CVE-2021-28676

JSON object : View

Products Affected

fedoraproject

  • fedora

python

  • pillow
CWE
CWE-835

Loop with Unreachable Exit Condition ('Infinite Loop')