Free Software Foundation Grub-Legacy up to 0.97 XFS Partition integer overflow

Summaryinfo

A vulnerability classified as critical was found in Free Software Foundation Grub-Legacy up to 0.97. This affects an unknown part of the component XFS Partition Handler. Executing a manipulation can lead to integer overflow. This vulnerability is tracked as CVE-2023-4949. The attack is restricted to local execution. No exploit exists.

Detailsinfo

A vulnerability classified as critical was found in Free Software Foundation Grub-Legacy up to 0.97. This vulnerability affects an unknown function of the component XFS Partition Handler. The manipulation with an unknown input leads to a integer overflow vulnerability. The CWE definition for the vulnerability is CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

An attacker with local access to a system (either through a disk or external drive) can present a modified XFS partition to grub-legacy in such a way to exploit a memory corruption in grub’s XFS file system implementation.

The weakness was disclosed 11/10/2023. The advisory is shared for download at xenbits.xenproject.org. This vulnerability was named CVE-2023-4949 since 09/13/2023. There are neither technical details nor an exploit publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• Free Software Foundation

Name

• Grub-Legacy

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9
• 0.10
• 0.11
• 0.12
• 0.13
• 0.14
• 0.15
• 0.16
• 0.17
• 0.18
• 0.19
• 0.20
• 0.21
• 0.22
• 0.23
• 0.24
• 0.25
• 0.26
• 0.27
• 0.28
• 0.29
• 0.30
• 0.31
• 0.32
• 0.33
• 0.34
• 0.35
• 0.36
• 0.37
• 0.38
• 0.39
• 0.40
• 0.41
• 0.42
• 0.43
• 0.44
• 0.45
• 0.46
• 0.47
• 0.48
• 0.49
• 0.50
• 0.51
• 0.52
• 0.53
• 0.54
• 0.55
• 0.56
• 0.57
• 0.58
• 0.59
• 0.60
• 0.61
• 0.62
• 0.63
• 0.64
• 0.65
• 0.66
• 0.67
• 0.68
• 0.69
• 0.70
• 0.71
• 0.72
• 0.73
• 0.74
• 0.75
• 0.76
• 0.77
• 0.78
• 0.79
• 0.80
• 0.81
• 0.82
• 0.83
• 0.84
• 0.85
• 0.86
• 0.87
• 0.88
• 0.89
• 0.90
• 0.91
• 0.92
• 0.93
• 0.94
• 0.95
• 0.96
• 0.97

CPE 2.3info

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CPE 2.2info

• 🔍
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Once again VulDB remains the best source for vulnerability data.

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