linux-pam linux-pam 0.99.4.0 vulnerabilities and exploits

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Integer signedness error in the _pam_StrTok function in libpam/pam_misc.c in Linux-PAM (aka pam) 1.0.3 and previous versions, when a configuration file contains non-ASCII usernames, might allow remote malicious users to cause a denial of service, and might allow remote authentica...

pam_namespace.c in the pam_namespace module in Linux-PAM (aka pam) prior to 1.1.3 uses the environment of the invoking application or service during execution of the namespace.init script, which might allow local users to gain privileges by running a setuid program that relies on...

The pam_sm_close_session function in pam_xauth.c in the pam_xauth module in Linux-PAM (aka pam) 1.1.2 and previous versions does not properly handle a failure to determine a certain target uid, which might allow local users to delete unintended files by executing a program that r...

The check_acl function in pam_xauth.c in the pam_xauth module in Linux-PAM (aka pam) 1.1.2 and previous versions does not verify that a certain ACL file is a regular file, which might allow local users to cause a denial of service (resource consumption) via a special file.

The pam_env module in Linux-PAM (aka pam) 1.1.2 and previous versions reads the .pam_environment file in a user's home directory, which might allow local users to run programs with an unintended environment by executing a program that relies on the pam_env PAM check.

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The run_coprocess function in pam_xauth.c in the pam_xauth module in Linux-PAM (aka pam) prior to 1.1.2 does not check the return values of the setuid, setgid, and setgroups system calls, which might allow local users to read arbitrary files by executing a program that relies on ...

The (1) pam_env and (2) pam_mail modules in Linux-PAM (aka pam) prior to 1.1.2 use root privileges during read access to files and directories that belong to arbitrary user accounts, which might allow local users to obtain sensitive information by leveraging this filesystem activ...

Stack-based buffer overflow in the _assemble_line function in modules/pam_env/pam_env.c in Linux-PAM (aka pam) prior to 1.1.5 allows local users to cause a denial of service (crash) and possibly execute arbitrary code via a long string of white spaces at the beginning of the ~/.p...

The _expand_arg function in the pam_env module (modules/pam_env/pam_env.c) in Linux-PAM (aka pam) prior to 1.1.5 does not properly handle when environment variable expansion can overflow, which allows local users to cause a denial of service (CPU consumption).

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