Gnu Screen vulnerabilities

CVE-2023-24626 [MEDIUM] CWE-732 CVE-2023-24626: socket.c in GNU Screen through 4.9.0, when installed setuid or setgid (the default on platforms such socket.c in GNU Screen through 4.9.0, when installed setuid or setgid (the default on platforms such as Arch Linux and FreeBSD), allows local users to send a privileged SIGHUP signal to any PID, causing a denial of service or disruption of the target process.

CVE-2021-26937 [CRITICAL] CWE-88 CVE-2021-26937: encoding.c in GNU Screen through 4.8.0 allows remote attackers to cause a denial of service (invalid 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.

CVE-2020-9366 [CRITICAL] CWE-787 CVE-2020-9366: A buffer overflow was found in the way GNU Screen before 4.8.0 treated the special escape OSC 49. Sp 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.

CVE-2017-5618 [HIGH] CWE-863 CVE-2017-5618: GNU screen before 4.5.1 allows local users to modify arbitrary files and consequently gain root priv 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-2009-1214 [MEDIUM] CWE-264 CVE-2009-1214: GNU screen 4.0.3 creates the /tmp/screen-exchange temporary file with world-readable permissions, wh 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.

CVE-2007-3048 [HIGH] CVE-2007-3048: GNU screen 4.0.3 allows local users to unlock the screen via a CTRL-C sequence at the password promp GNU screen 4.0.3 allows local users to unlock the screen via a CTRL-C sequence at the password prompt. NOTE: multiple third parties report inability to reproduce this issue

CVE-2006-4573 [LOW] CVE-2006-4573: Multiple unspecified vulnerabilities in the "utf8 combining characters handling" (utf8_handle_comb f Multiple unspecified vulnerabilities in the "utf8 combining characters handling" (utf8_handle_comb function in encoding.c) in screen before 4.0.3 allows user-assisted attackers to cause a denial of service (crash or hang) via certain UTF8 sequences.

CVE-2003-0972 [CRITICAL] CVE-2003-0972: Integer signedness error in ansi.c for GNU screen 4.0.1 and earlier, and 3.9.15 and earlier, allows Integer signedness error in ansi.c for GNU screen 4.0.1 and earlier, and 3.9.15 and earlier, allows local users to execute arbitrary code via a large number of ";" (semicolon) characters in escape sequences, which leads to a buffer overflow.

CVE-2002-1602 [MEDIUM] CVE-2002-1602: Buffer overflow in the Braille module for GNU screen 3.9.11, when HAVE_BRAILLE is defined, allows lo Buffer overflow in the Braille module for GNU screen 3.9.11, when HAVE_BRAILLE is defined, allows local users to execute arbitrary code.