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Debian: DLA-2570-1 Critical: Screen DoS Through UTF-8 Sequence

debian lts
Calendar Grey February 19, 2021
Dist Debian Esm H88
Debian LTS DLA-2570-2 fixes a buffer overflow issue in OpenSSL, potentially enabling remote exploitation through malicious certificates.
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 v...
Topics%20covered

Topics Covered

security advisory denial of service critical debian screen application crash UTF-8 GNU Screen utf-8

Summary

For Debian 9 stretch, this problem has been fixed in version
4.5.0-6+deb9u1.

We recommend that you upgrade your screen packages.

For the detailed security status of screen please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/screen

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS


Severity
critical
Lowest
Low
Medium
High
Critical

Package: screen
Version: 4.5.0-6+deb9u1
CVE ID: CVE-2021-26937
Debian Bug: 982435

Topics%20covered

Topics Covered

security advisory denial of service critical debian screen application crash UTF-8 GNU Screen utf-8

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