CVE-2021-45385

CVSS V2 Medium 4.3 CVSS V3 Medium 6.5
Description
A Null Pointer Dereference vulnerability exits in ffjpeg d5cfd49 (2021-12-06) in bmp_load(). When the size information in metadata of the bmp is out of range, it returns without assign memory buffer to `pb->pdata` and did not exit the program. So the program crashes when it tries to access the pb->data, in jfif_encode() at jfif.c:763. This is due to the incomplete patch for CVE-2020-13438.
Overview
  • CVE ID
  • CVE-2021-45385
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2022-02-11T16:15:08
  • Last Modified Date
  • 2022-02-18T18:36:52
Weakness Enumerations
CWE URL
CWE-476 http://cwe.mitre.org/data/definitions/476.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:ffjpeg_project:ffjpeg:2021-12-06:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 4.3
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • REQUIRED
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 6.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://github.com/rockcarry/ffjpeg/pull/48 Issue Tracking Patch Third Party Advisory
https://github.com/rockcarry/ffjpeg/issues/47 Exploit Issue Tracking Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-45385
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-45385
History
Created Old Value New Value Data Type Notes
2022-05-10 06:32:18 Added to TrackCVE
2022-12-06 09:27:37 2022-02-11T16:15Z 2022-02-11T16:15:08 CVE Published Date updated
2022-12-06 09:27:37 2022-02-18T18:36:52 CVE Modified Date updated
2022-12-06 09:27:37 Analyzed Vulnerability Status updated