Description
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.
Published: 2020-07-31
Score: 5.7 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-4735-1 grub2 security update
EUVD EUVD 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.
Ubuntu USN Ubuntu USN USN-4432-1 GRUB 2 vulnerabilities
History

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Subscriptions

Canonical Ubuntu Linux
Gnu Grub2
Opensuse Leap
Redhat Enterprise Linux Enterprise Linux Eus Enterprise Linux Server Aus Enterprise Linux Server Tus Rhel Aus Rhel E4s Rhel Eus Rhel Tus
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-04T12:39:36.229Z

Reserved: 2020-06-17T00:00:00.000Z

Link: CVE-2020-14311

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-07-31T22:15:11.597

Modified: 2024-11-21T05:02:58.923

Link: CVE-2020-14311

cve-icon Redhat

Severity : Moderate

Publid Date: 2020-07-29T17:00:00Z

Links: CVE-2020-14311 - Bugzilla

cve-icon OpenCVE Enrichment

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Weaknesses