Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 21.1%
CVSS Severity
CVSS v3 Score 7.0
CVSS v2 Score 4.4
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1991687
- https://security.gentoo.org/glsa/202209-12
- https://security.netapp.com/advisory/ntap-20220930-0001/
- https://bugzilla.redhat.com/show_bug.cgi?id=1991687
- https://security.gentoo.org/glsa/202209-12
- https://security.netapp.com/advisory/ntap-20220930-0001/
Products affected by CVE-2021-3697
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cpe:2.3:a:gnu:grub2:2.00
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cpe:2.3:a:gnu:grub2:2.01
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cpe:2.3:a:gnu:grub2:2.02
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cpe:2.3:a:gnu:grub2:2.04
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cpe:2.3:a:gnu:grub2:2.06
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cpe:2.3:a:gnu:grub2:2.06-150400.7.1
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cpe:2.3:a:gnu:grub2:2.06-18.1
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cpe:2.3:a:redhat:codeready_linux_builder:-
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cpe:2.3:a:redhat:developer_tools:1.0
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cpe:2.3:a:redhat:openshift:3.0
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cpe:2.3:a:redhat:openshift_container_platform:4.10
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cpe:2.3:a:redhat:openshift_container_platform:4.6
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cpe:2.3:a:redhat:openshift_container_platform:4.9
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cpe:2.3:o:redhat:enterprise_linux:8.0
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cpe:2.3:o:redhat:enterprise_linux:8.1
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cpe:2.3:o:redhat:enterprise_linux:8.4
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cpe:2.3:o:redhat:enterprise_linux:9.0
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cpe:2.3:o:redhat:enterprise_linux_eus:8.2
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cpe:2.3:o:redhat:enterprise_linux_eus:8.4
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cpe:2.3:o:redhat:enterprise_linux_eus:8.6
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cpe:2.3:o:redhat:enterprise_linux_eus:9.0
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cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0
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cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:9.0
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cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.2
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cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.4
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cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.6
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cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:9.0
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cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2
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cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4
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cpe:2.3:o:redhat:enterprise_linux_server_aus:8.6
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Redhat » Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions » Version: 8.1cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.1
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Redhat » Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions » Version: 8.2cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.2
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Redhat » Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions » Version: 8.4cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.4
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Redhat » Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions » Version: 8.6cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.6
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Redhat » Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions » Version: 9.0cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:9.0
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cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2
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cpe:2.3:o:redhat:enterprise_linux_server_tus:8.4
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cpe:2.3:o:redhat:enterprise_linux_server_tus:8.6