what you don't know can hurt you

Gentoo Linux Security Advisory 202003-62

Gentoo Linux Security Advisory 202003-62
Posted Mar 30, 2020
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202003-62 - A buffer overflow in GNU Screen might allow remote attackers to corrupt memory. Versions less than 4.8.0 are affected.

tags | advisory, remote, overflow
systems | linux, gentoo
advisories | CVE-2020-9366
MD5 | ab4de12e48da1c85fe4f68a82ac29386

Gentoo Linux Security Advisory 202003-62

Change Mirror Download
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 202003-62
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
https://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Severity: Normal
Title: GNU Screen: Buffer overflow
Date: March 30, 2020
Bugs: #708460
ID: 202003-62

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
========

A buffer overflow in GNU Screen might allow remote attackers to corrupt
memory.

Background
==========

GNU Screen is a full-screen window manager that multiplexes a physical
terminal between several processes, typically interactive shells.

Affected packages
=================

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-misc/screen < 4.8.0 >= 4.8.0

Description
===========

A buffer overflow was found in the way GNU Screen treated the special
escape OSC 49.

Impact
======

A remote attacker, by writing a specially crafted string of characters
to a GNU Screen window, could possibly corrupt memory or have other
unspecified impact.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All GNU Screen users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-misc/screen-4.8.0"

References
==========

[ 1 ] CVE-2020-9366
https://nvd.nist.gov/vuln/detail/CVE-2020-9366

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

https://security.gentoo.org/glsa/202003-62

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======

Copyright 2020 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5
Login or Register to add favorites

File Archive:

September 2020

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Sep 1st
    20 Files
  • 2
    Sep 2nd
    15 Files
  • 3
    Sep 3rd
    15 Files
  • 4
    Sep 4th
    4 Files
  • 5
    Sep 5th
    1 Files
  • 6
    Sep 6th
    1 Files
  • 7
    Sep 7th
    15 Files
  • 8
    Sep 8th
    27 Files
  • 9
    Sep 9th
    7 Files
  • 10
    Sep 10th
    16 Files
  • 11
    Sep 11th
    9 Files
  • 12
    Sep 12th
    0 Files
  • 13
    Sep 13th
    0 Files
  • 14
    Sep 14th
    25 Files
  • 15
    Sep 15th
    15 Files
  • 16
    Sep 16th
    15 Files
  • 17
    Sep 17th
    15 Files
  • 18
    Sep 18th
    12 Files
  • 19
    Sep 19th
    1 Files
  • 20
    Sep 20th
    1 Files
  • 21
    Sep 21st
    15 Files
  • 22
    Sep 22nd
    21 Files
  • 23
    Sep 23rd
    8 Files
  • 24
    Sep 24th
    15 Files
  • 25
    Sep 25th
    0 Files
  • 26
    Sep 26th
    0 Files
  • 27
    Sep 27th
    0 Files
  • 28
    Sep 28th
    0 Files
  • 29
    Sep 29th
    0 Files
  • 30
    Sep 30th
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2020 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close