Vulnerability Monitor

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CVE-2021-3697

A crafted JPEG image may lead the JPEG reader to underflow its data pointer, allowing user-controlled data to be written in heap. To a successful to be performed the attacker needs to perform some triage over the heap layout and craft an image with a malicious format and payload. This vulnerability can lead to data corruption and eventual code execution or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12.

Published

2022-07-06T16:15:08.320

Last Modified

2024-11-21T06:22:10.820

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.0 (HIGH)

CVSSv2 Vector

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

  • Access Vector: LOCAL
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

3.4

Impact Score

6.4

Weaknesses
  • Type: Secondary
    CWE-787
  • Type: Primary
    CWE-787
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application gnu grub2 < 2.12 Yes
Application redhat developer_tools 1.0 Yes
Application redhat openshift 3.0 Yes
Operating System redhat enterprise_linux 8.0 Yes
Operating System redhat enterprise_linux 8.1 Yes
Operating System redhat enterprise_linux 8.4 Yes
Operating System redhat enterprise_linux 9.0 Yes
Operating System redhat enterprise_linux_eus 8.2 Yes
Operating System redhat enterprise_linux_eus 8.4 Yes
Operating System redhat enterprise_linux_eus 8.6 Yes
Operating System redhat enterprise_linux_eus 9.0 Yes
Operating System redhat enterprise_linux_for_power_little_endian 8.0 Yes
Operating System redhat enterprise_linux_for_power_little_endian 9.0 Yes
Operating System redhat enterprise_linux_for_power_little_endian_eus 8.2 Yes
Operating System redhat enterprise_linux_for_power_little_endian_eus 8.4 Yes
Operating System redhat enterprise_linux_for_power_little_endian_eus 8.6 Yes
Operating System redhat enterprise_linux_for_power_little_endian_eus 9.0 Yes
Operating System redhat enterprise_linux_server_aus 8.2 Yes
Operating System redhat enterprise_linux_server_aus 8.4 Yes
Operating System redhat enterprise_linux_server_aus 8.6 Yes
Operating System redhat enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions 8.1 Yes
Operating System redhat enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions 8.2 Yes
Operating System redhat enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions 8.4 Yes
Operating System redhat enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions 8.6 Yes
Operating System redhat enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions 9.0 Yes
Operating System redhat enterprise_linux_server_tus 8.2 Yes
Operating System redhat enterprise_linux_server_tus 8.4 Yes
Operating System redhat enterprise_linux_server_tus 8.6 Yes
Application redhat openshift_container_platform 4.6 Yes
Application redhat openshift_container_platform 4.9 Yes
Application redhat openshift_container_platform 4.10 Yes
Operating System redhat enterprise_linux 8.0 No
Application redhat codeready_linux_builder - Yes
Operating System redhat enterprise_linux 8.0 No
Operating System redhat enterprise_linux 9.0 No
Operating System redhat enterprise_linux_eus 8.2 No
Operating System redhat enterprise_linux_eus 8.4 No
Operating System redhat enterprise_linux_eus 8.6 No
Operating System redhat enterprise_linux_eus 9.0 No
References