SecuritySpace - CVE-2021-3696

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CVE ID: CVE-2021-3696

Description: A heap out-of-bounds write may heppen during the handling of Huffman tables in the PNG reader. This may lead to data corruption in the heap space. Confidentiality, Integrity and Availablity impact may be considered Low as it's very complex to an attacker control the encoding and positioning of corrupted Huffman entries to achieve results such as arbitrary code execution and/or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12.

Test IDs: None available

Cross References: Common Vulnerability Exposure (CVE) ID: CVE-2021-3696
https://security.gentoo.org/glsa/202209-12
https://bugzilla.redhat.com/show_bug.cgi?id=1991686
https://bugzilla.redhat.com/show_bug.cgi?id=1991686

CVE ID:	CVE-2021-3696
Description:	A heap out-of-bounds write may heppen during the handling of Huffman tables in the PNG reader. This may lead to data corruption in the heap space. Confidentiality, Integrity and Availablity impact may be considered Low as it's very complex to an attacker control the encoding and positioning of corrupted Huffman entries to achieve results such as arbitrary code execution and/or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12.
Test IDs:	None available
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2021-3696 https://security.gentoo.org/glsa/202209-12 https://bugzilla.redhat.com/show_bug.cgi?id=1991686 https://bugzilla.redhat.com/show_bug.cgi?id=1991686