CVE-2018-10877

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Last Modified: UTC

Description

A flaw was found in the Linux kernel ext4 filesystem. An out-of-bound access is possible in the ext4_ext_drop_refs() function when operating on a crafted ext4 filesystem image.

A flaw was found in the Linux kernel ext4 filesystem. An out-of-bound access is possible in the ext4_ext_drop_refs() function when operating on a crafted ext4 filesystem image.

Additional information

  • Bugzilla 1596795: kernel: out-of-bound access in ext4_ext_drop_refs function with a crafted ext4 image
  • CWE-125: Out-of-bounds Read
  • FAQ: Frequently asked questions about CVE-2018-10877

Common Vulnerability Scoring System (CVSS) Score Details

Important note

CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).

CVSS v3 Score Breakdown
Red HatNVD

CVSS v3 Base Score

5.2

6.5

Attack Vector

Physical

Local

Attack Complexity

Low

Low

Privileges Required

None

High

User Interaction

None

Required

Scope

Unchanged

Unchanged

Confidentiality Impact

None

High

Integrity Impact

Low

High

Availability Impact

High

High

CVSS v3 Vector

Red Hat: CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

NVD: CVSS:3.0/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

Frequently Asked Questions

Why is Red Hat's CVSS v3 score or Impact different from other vendors?

My product is listed as "Under investigation" or "Affected", when will Red Hat release a fix for this vulnerability?

What can I do if my product is listed as "Will not fix"?

What can I do if my product is listed as "Fix deferred"?

What is a mitigation?

I have a Red Hat product but it is not in the above list, is it affected?

Why is my security scanner reporting my product as vulnerable to this vulnerability even though my product version is fixed or not affected?

My product is listed as "Out of Support Scope". What does this mean?

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