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CVE-2015-6806

Publication date 28 September 2015

Last updated 24 July 2024

Ubuntu priority

Low

Why this priority?

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.

From the Ubuntu Security Team

It was discovered that GNU screen mishandled certain crafted input. An attacker could use this vulnerability to cause a denial of service.

Status

Package Ubuntu Release Status
screen 19.04 disco
Not affected
18.10 cosmic
Not affected
18.04 LTS bionic
Not affected
17.10 artful
Not affected
17.04 zesty
Not affected
16.10 yakkety
Not affected
16.04 LTS xenial
Not affected
15.10 wily
Not affected
15.04 vivid Ignored end of life
14.04 LTS trusty
12.04 LTS precise Ignored end of life

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
screen

References

Related Ubuntu Security Notices (USN)

Other references