There is an issue with grub2 before version 2.06 while handling symlink on ext filesystems. A filesystem containing a symbolic link with an inode size of UINT32_MAX causes an arithmetic overflow leading to a zero-sized memory allocation with subsequent heap-based buffer overflow.
Metrics
Affected Vendors & Products
Advisories
Source | ID | Title |
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DSA-4735-1 | grub2 security update |
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EUVD-2020-6463 | There is an issue with grub2 before version 2.06 while handling symlink on ext filesystems. A filesystem containing a symbolic link with an inode size of UINT32_MAX causes an arithmetic overflow leading to a zero-sized memory allocation with subsequent heap-based buffer overflow. |
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USN-4432-1 | GRUB 2 vulnerabilities |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
No history.

Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2024-08-04T12:39:36.229Z
Reserved: 2020-06-17T00:00:00
Link: CVE-2020-14311

No data.

Status : Modified
Published: 2020-07-31T22:15:11.597
Modified: 2024-11-21T05:02:58.923
Link: CVE-2020-14311


No data.