Out-of-bounds Write Affecting e2fsprogs package, versions <1.42.13-1ubuntu1.2


Severity

Recommended
0.0
medium
0
10

Based on Ubuntu security rating

    Threat Intelligence

    EPSS
    0.07% (29th percentile)

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  • Snyk ID SNYK-UBUNTU1604-E2FSPROGS-541191
  • published 7 Jan 2020
  • disclosed 8 Jan 2020

How to fix?

Upgrade Ubuntu:16.04 e2fsprogs to version 1.42.13-1ubuntu1.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream e2fsprogs package and not the e2fsprogs package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

A code execution vulnerability exists in the directory rehashing functionality of E2fsprogs e2fsck 1.45.4. A specially crafted ext4 directory can cause an out-of-bounds write on the stack, resulting in code execution. An attacker can corrupt a partition to trigger this vulnerability.

CVSS Scores

version 3.1
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NVD

6.7 medium
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    High
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
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Red Hat

7.5 high
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SUSE

6.4 medium