Out-of-bounds Write Affecting screen package, versions [,4.8.0)


Severity

Recommended
0.0
critical
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.33% (72nd percentile)

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  • Snyk IDSNYK-UNMANAGED-SCREEN-2319405
  • published14 Dec 2021
  • disclosed24 Feb 2020
  • creditUnknown

Introduced: 24 Feb 2020

CVE-2020-9366  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade screen to version 4.8.0 or higher.

Overview

Affected versions of this package are vulnerable to Out-of-bounds Write. A buffer overflow was found in the way GNU Screen before 4.8.0 treated the special escape OSC 49. Specially crafted output, or a special program, could corrupt memory and crash Screen or possibly have unspecified other impact.

References

CVSS Base Scores

version 3.1