GNU screen v4.9.0 - Privilege Escalation Exploit

Exploit Title: GNU screen v4.9.0 - Privilege Escalation Date: 03.02.2023 Exploit Author: Manuel Andreas Vendor Homepage: https://www.gnu.org/software/screen/ Software Link: https://ftp.gnu.org/gnu/screen/screen-4.9.0.tar.gz Version: 4.9.0 Tested on: Arch Linux CVE : CVE-2023-24626 import os impor...

K95521879: screen vulnerability CVE-2017-5618

Security Advisory Description GNU screen before 4.5.1 allows local users to modify arbitrary files and consequently gain root privileges by leveraging improper checking of logfile permissions. CVE-2017-5618 Impact There is no impact; F5 products are not affected by this vulnerability. Security...

SUSE CVE-2009-1214

GNU screen 4.0.3 creates the /tmp/screen-exchange temporary file with world-readable permissions, which might allow local users to obtain sensitive session information...

SUSE CVE-2009-1215

Race condition in GNU screen 4.0.3 allows local users to create or overwrite arbitrary files via a symlink attack on the /tmp/screen-exchange temporary file...

SUSE CVE-2015-6806

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...

SUSE CVE-2020-9366

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...

SUSE CVE-2021-26937

encoding.c in GNU Screen through 4.8.0 allows remote attackers to cause a denial of service invalid write access and application crash or possibly have unspecified other impact via a crafted UTF-8 character sequence...

PT-2023-19717

Name of the Vulnerable Software and Affected Versions GNU Screen versions through 4.9.0 Description The issue allows local users to send a privileged SIGHUP signal to any PID, causing a denial of service or disruption of the target process. This occurs when GNU Screen is installed setuid or setgi...

Nutanix AOS : Multiple Vulnerabilities (NXSA-AOS-5.15.5.5)

The version of AOS installed on the remote host is prior to 5.15.5.5. It is, therefore, affected by multiple vulnerabilities as referenced in the NXSA-AOS-5.15.5.5 advisory. - encoding.c in GNU Screen through 4.8.0 allows remote attackers to cause a denial of service invalid write access and...

Nutanix AOS : Multiple Vulnerabilities (NXSA-AOS-5.15.7)

The version of AOS installed on the remote host is prior to 5.15.7. It is, therefore, affected by multiple vulnerabilities as referenced in the NXSA-AOS-5.15.7 advisory. - encoding.c in GNU Screen through 4.8.0 allows remote attackers to cause a denial of service invalid write access and...

Nutanix AHV : Multiple Vulnerabilities (NXSA-AHV-20201105.2030)

The version of AHV installed on the remote host is prior to 20201105.2030. It is, therefore, affected by multiple vulnerabilities as referenced in the NXSA-AHV-20201105.2030 advisory. - encoding.c in GNU Screen through 4.8.0 allows remote attackers to cause a denial of service invalid write acces...

encoding.c in GNU Screen through 4.8.0 allows remote attackers to cause a denial of service (invalid write access and application crash) or possibly have unspecified other impact via a crafted UTF-8 character sequence.

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The vulnerability of the encoding.c component of the GNU Screen window manager allows a hacker to introduce or modify arguments, thereby enabling them to access confidential data, compromise its integrity, and cause service failures.

The vulnerability of the encoding.c component of the GNU Screen terminal manager is related to incorrect processing of UTF-8 character sequences. Exploiting this vulnerability can allow an attacker to gain access to confidential data, compromise its integrity, and cause service failures...

EulerOS Virtualization for ARM 64 3.0.6.0 : screen (EulerOS-SA-2021-2008)

According to the version of the screen package installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerability : - encoding.c in GNU Screen through 4.8.0 allows remote attackers to cause a denial of service invalid write access and...

GNU Screen: User-assisted execution of arbitrary code

Background GNU Screen is a full-screen window manager that multiplexes a physical terminal between several processes, typically interactive shells. Description It was discovered that GNU screen did not properly handle certain UTF-8 character sequences. Impact A remote attacker could entice a user...

Amazon Linux AMI : screen (ALAS-2021-1492)

The version of screen installed on the remote host is prior to 4.0.3-19.7. It is, therefore, affected by a vulnerability as referenced in the ALAS-2021-1492 advisory. A flaw was found in screen. A specially crafted sequence of combining characters could cause an out of bounds write leading to...

OESA-2021-1090 screen security update

Screen is a full-screen window manager that multiplexes a physical terminal between several processes, typically interactive shells. Security Fixes: encoding.c in GNU Screen through 4.8.0 allows remote attackers to cause a denial of service invalid write access and application crash or possibly...

Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : GNU Screen vulnerability (USN-4747-1)

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-4747-1 advisory. Felix Weinmann discovered that GNU Screen incorrectly handled certain character sequences. A remote attacker could use this issue to cause...

Oracle Linux 7 : screen (ELSA-2021-0742)

The remote Oracle Linux 7 host has a package installed that is affected by a vulnerability as referenced in the ELSA-2021-0742 advisory. 4.1.0-0.27.2012314git3c2946 - fix CVE-2021-26937 1927063 Tenable has extracted the preceding description block directly from the Oracle Linux security advisory...

Fedora 32 : screen (2021-5e9894a0c5)

The remote Fedora 32 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2021-5e9894a0c5 advisory. - encoding.c in GNU Screen through 4.8.0 allows remote attackers to cause a denial of service invalid write access and application crash or possibly...