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.Referenceshttps://lists.gnu.org/archive/html/screen-devel/2021-02/msg00000.htmlhttps://www.openwall.com/lists/oss-security/2021/02/09/3https://ftp.gnu.org/gnu/screen/http://www.openwall.com/lists/oss-security/2021/02/09/8https://lists.debian.org/debian-lts-announce/2021/02/msg00031.htmlhttps://www.debian.org/security/2021/dsa-4861https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JJWLXP45POUUYBJRRWPVAWNZDJTLYWVM/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GNWBOIDEPOEQS5RMQVMFKHKXJCGNYWBL/https://security.gentoo.org/glsa/202105-11
