medium4.5
CVE-2021-3696
A heap out-of-bounds write may heppen during the handling of Huffman tables in the PNG reader.
Impact
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
| Vendor | Product | Affected versions |
|---|---|---|
| Gnu | Grub2 | from 2.00 before 2.12 |
| Redhat | Developer Tools | Version 1.0 |
| Redhat | Openshift | Version 3.0 |
| Redhat | Enterprise Linux | Versions 8.0, 8.1, 8.4, 9.0 |
| Redhat | Enterprise Linux Eus | Versions 8.2, 8.4, 8.6, 9.0 |
| Redhat | Enterprise Linux For Power Little Endian | Versions 8.0, 9.0 |
| Redhat | Enterprise Linux For Power Little Endian Eus | Versions 8.2, 8.4, 8.6, 9.0 |
| Redhat | Enterprise Linux Server Aus | Versions 8.2, 8.4, 8.6 |
| Redhat | Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions | Versions 8.1, 8.2, 8.4, 8.6, 9.0 |
| Redhat | Enterprise Linux Server Tus | Versions 8.2, 8.4, 8.6 |
| Redhat | Openshift Container Platform | Versions 4.6, 4.9, 4.10 |
| Redhat | Codeready Linux Builder | All versions |
Weakness classification
References
- NVD record
- CVE.org record
- https://bugzilla.redhat.com/show_bug.cgi?id=1991686
- https://security.gentoo.org/glsa/202209-12
- https://security.netapp.com/advisory/ntap-20220930-0001/
- https://bugzilla.redhat.com/show_bug.cgi?id=1991686
- https://security.gentoo.org/glsa/202209-12
- https://security.netapp.com/advisory/ntap-20220930-0001/