Not rated
CVE-2021-3696 A heap out-of-bounds write may heppen during the handling of Huffman tables in the PNG reader
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| grub2 | Versions not published |
References
- bugzilla.redhat.com bugzilla.redhat.com
- GLSA-202209-12 security.gentoo.org
- security.netapp.com security.netapp.com
Timeline
- Published
- Last modified
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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…
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CVE-2021-3695
A crafted 16-bit grayscale PNG image may lead to a out-of-bounds write in the heap area
Not rated