CVE-2018-7439

Publication date 23 February 2018

Last updated 24 July 2024


Ubuntu priority

Cvss 3 Severity Score

8.8 · High

Score breakdown

An issue was discovered in FreeXL before 1.0.5. There is a heap-based buffer over-read in the function read_mini_biff_next_record.

From the Ubuntu Security Team

It was discovered that FreeXL did not properly handle certain input, resulting in a beap-based buffer over-read. If a user were tricked into opening a malicious Excel spreadsheet, FreeXL could potentially leak sensitive information.

Status

Package Ubuntu Release Status
freexl 18.04 LTS bionic
Not affected
17.10 artful Ignored end of life
16.04 LTS xenial
Fixed 1.0.2-1ubuntu0.1
14.04 LTS trusty
Fixed 1.0.0g-1ubuntu0.14.04.3

Severity score breakdown

Parameter Value
Base score 8.8 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H