CVE-2021-26937

Name
CVE-2021-26937
Description
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.
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
Exploit https://www.openwall.com/lists/oss-security/2021/02/09/3
Product https://ftp.gnu.org/gnu/screen/
Exploit https://lists.gnu.org/archive/html/screen-devel/2021-02/msg00000.html
Exploit http://www.openwall.com/lists/oss-security/2021/02/09/8
Mailing List https://lists.debian.org/debian-lts-announce/2021/02/msg00031.html
Third Party Advisory https://www.debian.org/security/2021/dsa-4861
Mailing List https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JJWLXP45POUUYBJRRWPVAWNZDJTLYWVM/
Mailing List https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GNWBOIDEPOEQS5RMQVMFKHKXJCGNYWBL/
GENTOO https://security.gentoo.org/glsa/202105-11
cve@mitre.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GNWBOIDEPOEQS5RMQVMFKHKXJCGNYWBL/
cve@mitre.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JJWLXP45POUUYBJRRWPVAWNZDJTLYWVM/
af854a3a-2127-422b-91ae-364da2661108 https://security.netapp.com/advisory/ntap-20250509-0004/

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:gnu:screen:*:*:*:*:*:*:*:* screen >= None <= 4.8.0

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
screen edge-main 4.8.0-r6 Natanael Copa <ncopa@alpinelinux.org> fixed
screen edge-main 4.8.0-r5 Natanael Copa <ncopa@alpinelinux.org> fixed
screen edge-main 4.8.0-r4 None fixed
screen edge-main 4.8.0-r0 None possibly vulnerable
screen 3.22-main 4.8.0-r4 None fixed
screen 3.22-main 4.8.0-r0 None possibly vulnerable
screen 3.21-main 4.8.0-r4 None fixed
screen 3.21-main 4.8.0-r0 None possibly vulnerable
screen 3.20-main 4.8.0-r4 None fixed
screen 3.20-main 4.8.0-r0 None possibly vulnerable
screen 3.19-main 4.8.0-r4 None fixed
screen 3.19-main 4.8.0-r0 None possibly vulnerable
screen 3.18-main 4.8.0-r4 None fixed
screen 3.17-main 4.8.0-r4 None fixed
screen 3.12-main 4.8.0-r2 Natanael Copa <ncopa@alpinelinux.org> fixed
screen 3.12-main 4.8.0-r1 None fixed
screen 3.11-main 4.7.0-r3 Natanael Copa <ncopa@alpinelinux.org> fixed
screen 3.11-main 4.7.0-r2 None fixed
screen 3.10-main 4.6.2-r3 Natanael Copa <ncopa@alpinelinux.org> fixed
screen 3.10-main 4.6.2-r2 None fixed