Buffer Overflow in GNU Screen Affects Users
CVE-2020-9366

9.8CRITICAL

Key Information:

Vendor
Gnu
Status
Screen
Vendor
CVE Published:
24 February 2020

Summary

A buffer overflow vulnerability exists in GNU Screen prior to version 4.8.0 due to improper handling of the OSC 49 escape sequence. This flaw can result in memory corruption, potentially leading to application crashes and other unpredictable behaviors. Maliciously crafted outputs or programs can exploit this vulnerability, compromising system stability.

References

https://www.openwall.com/lists/oss-security/2020/02/06/3
x_refsource_MISC
https://lists.gnu.org/archive/html/screen-devel/2020-02/m...
x_refsource_MISC
http://www.openwall.com/lists/oss-security/2020/02/25/1
mailing-listx_refsource_MLIST

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.