Out-of-Bounds Affecting screen package, versions <4.1.0~20120320gitdb59704-9ubuntu0.1~esm1


Severity

Recommended
low

Based on Ubuntu security rating.

Threat Intelligence

EPSS
13.73% (96th percentile)

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  • Snyk IDSNYK-UBUNTU1404-SCREEN-315762
  • published28 Sept 2015
  • disclosed28 Sept 2015

Introduced: 28 Sep 2015

CVE-2015-6806  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

Upgrade Ubuntu:14.04 screen to version 4.1.020120320gitdb59704-9ubuntu0.1esm1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream screen package and not the screen package as distributed by Ubuntu. See How to fix? for Ubuntu:14.04 relevant fixed versions and status.

The MScrollV function in ansi.c in GNU screen 4.3.1 and earlier does not properly limit recursion, which allows remote attackers to cause a denial of service (stack consumption) via an escape sequence with a large repeat count value.

CVSS Scores

version 3.1