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Ubuntu 14.04 ESM: USN-3996-1 Critical: GNU Screen Denial of Service

ubuntu
Calendar Grey May 29, 2019
Dist Ubuntu Esm H88
The Ubuntu Security Advisory USN-4000-2 addresses a significant security flaw in the GNU Screen utility that poses risks to both system integrity and overall security posture.
GNU Screen could be made to crash or run programs as your login if it opened a specially crafted file or received specially crafted input.

Summary

GNU Screen could be made to crash or run programs as your login if it

opened a specially crafted file or received specially crafted input.

Software Description:

- screen: terminal multiplexer with VT100/ANSI terminal emulation

Details:

Kuang-che Wu discovered that GNU Screen improperly handled certain input. An

attacker could use this issue to cause GNU Screen to crash, resulting in a

denial of service or the execution of arbitrary code.

Topics%20covered

Topics Covered

security advisory denial of service code execution Ubuntu GNU Screen

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 14.04 ESM:
  screen                          4.1.0~20120320gitdb59704-9ubuntu0.1~esm1

Ubuntu 12.04 ESM:
  screen                          4.0.3-14ubuntu8.1

In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-3996-1

CVE-2015-6806

Severity
critical
Lowest
Low
Medium
High
Critical

May 29, 2019

Topics%20covered

Topics Covered

security advisory denial of service code execution Ubuntu GNU Screen

Package Information

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