Search criteria
4 vulnerabilities found for grub2 by The Grub2 Project
CVE-2020-14311 (GCVE-0-2020-14311)
Vulnerability from cvelistv5 – Published: 2020-07-31 20:56 – Updated: 2024-08-04 12:39
VLAI?
Summary
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.
Severity ?
5.7 (Medium)
Assigner
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| The Grub2 Project | grub2 |
Affected:
2.06
|
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CVE-2020-14310 (GCVE-0-2020-14310)
Vulnerability from cvelistv5 – Published: 2020-07-31 20:55 – Updated: 2024-08-04 12:39
VLAI?
Summary
There is an issue on grub2 before version 2.06 at function read_section_as_string(). It expects a font name to be at max UINT32_MAX - 1 length in bytes but it doesn't verify it before proceed with buffer allocation to read the value from the font value. An attacker may leverage that by crafting a malicious font file which has a name with UINT32_MAX, leading to read_section_as_string() to an arithmetic overflow, zero-sized allocation and further heap-based buffer overflow.
Severity ?
5.7 (Medium)
Assigner
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| The Grub2 Project | grub2 |
Affected:
2.06
|
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CVE-2020-14311 (GCVE-0-2020-14311)
Vulnerability from nvd – Published: 2020-07-31 20:56 – Updated: 2024-08-04 12:39
VLAI?
Summary
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.
Severity ?
5.7 (Medium)
Assigner
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| The Grub2 Project | grub2 |
Affected:
2.06
|
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CVE-2020-14310 (GCVE-0-2020-14310)
Vulnerability from nvd – Published: 2020-07-31 20:55 – Updated: 2024-08-04 12:39
VLAI?
Summary
There is an issue on grub2 before version 2.06 at function read_section_as_string(). It expects a font name to be at max UINT32_MAX - 1 length in bytes but it doesn't verify it before proceed with buffer allocation to read the value from the font value. An attacker may leverage that by crafting a malicious font file which has a name with UINT32_MAX, leading to read_section_as_string() to an arithmetic overflow, zero-sized allocation and further heap-based buffer overflow.
Severity ?
5.7 (Medium)
Assigner
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| The Grub2 Project | grub2 |
Affected:
2.06
|
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