Vulnerabilidades

GNU Midnight Commander 4.8.29-146-g299d9a2fb was discovered to contain a NULL pointer dereference via the function x_error_handler() at tty/x11conn.c. NOTE: this is disputed because it should be categorized as a usability problem (an X operation silently fails).

An issue was discovered in Midnight Commander through 4.8.26. When establishing an SFTP connection, the fingerprint of the server is neither checked nor displayed. As a result, a user connects to the server without the ability to verify its authenticity.

Midnight Commander (mc) 4.8.5 does not properly handle the (1) MC_EXT_SELECTED or (2) MC_EXT_ONLYTAGGED environment variables when multiple files are selected, which allows user-assisted remote attackers to execute arbitrary commands via a crafted file name.

Buffer overflow in Midnight Commander (mc) 4.5.55 and earlier may allow attackers to execute arbitrary code.

Midnight commander (mc) 4.5.55 and earlier allows remote attackers to cause a denial of service via "a corrupt section header."

Midnight commander (mc) 4.5.55 and earlier allows remote attackers to cause a denial of service via "use of already freed memory."

Multiple format string vulnerabilities in Midnight Commander (mc) 4.5.55 and earlier allow remote attackers to have an unknown impact.

Multiple buffer overflows in Midnight Commander (mc) 4.5.55 and earlier allow remote attackers to have an unknown impact.

Midnight commander (mc) 4.5.55 and earlier allows remote attackers to cause a denial of service by causing mc to free unallocated memory.

Buffer underflow in extfs.c in Midnight Commander (mc) 4.5.55 and earlier allows remote attackers to cause a denial of service and possibly execute arbitrary code.

direntry.c in Midnight Commander (mc) 4.5.55 and earlier allows attackers to cause a denial of service by "manipulating non-existing file handles."

Midnight commander (mc) 4.5.55 and earlier allows remote attackers to cause a denial of service by triggering a null dereference.

fish.c in midnight commander allows remote attackers to execute arbitrary programs via "insecure filename quoting," possibly using shell metacharacters.

Midnight commander (mc) 4.5.55 and earlier allows remote attackers to cause a denial of service (infinite loop) via unknown attack vectors.

Multiple format string vulnerabilities in Midnight Commander (mc) before 4.6.0 may allow attackers to cause a denial of service or execute arbitrary code.

Multiple vulnerabilities in Midnight Commander (mc) before 4.6.0, with unknown impact, related to "Insecure temporary file and directory creations."

Multiple buffer overflows in Midnight Commander (mc) before 4.6.0 may allow attackers to cause a denial of service or execute arbitrary code.

Stack-based buffer overflow in vfs_s_resolve_symlink of vfs/direntry.c for Midnight Commander (mc) 4.6.0 and earlier, and possibly later versions, allows remote attackers to execute arbitrary code during symlink conversion.

Buffer overflow in mcedit in Midnight Commander 4.5.1 allows local users to cause a denial of service (segmentation fault) and possibly execute arbitrary code via a crafted text file.

Midnight Commander (mc) 4.5.51 and earlier does not properly process malformed directory names when a user opens a directory, which allows other local users to gain privileges by creating directories that contain special characters followed by the commands to be executed.

cons.saver in Midnight Commander (mc) 4.5.42 and earlier does not properly verify if an output file descriptor is a TTY, which allows local users to corrupt files by creating a symbolic link to the target file, calling mc, and specifying that link as a TTY argument.

FTP client in Midnight Commander (mc) before 4.5.11 stores usernames and passwords for visited sites in plaintext in the world-readable history file, which allows other local users to gain privileges.

Local attackers can conduct a denial of service in Midnight Commander 4.x with a symlink attack.