ibackup 2.27 allows local users to overwrite arbitrary files via a symlink attack on temporary files.

pt_chown in the glibc package before 2.19-18+deb8u4 on Debian jessie; the elibc package before 2.15-0ubuntu10.14 on Ubuntu 12.04 LTS and before 2.19-0ubuntu6.8 on Ubuntu 14.04 LTS; and the glibc package before 2.21-0ubuntu4.2 on Ubuntu 15.10 and before 2.23-0ubuntu1 on Ubuntu 16.04 LTS and 16.10 lacks a namespace check associated with file-descriptor passing, which allows local users to capture keystrokes and spoof data, and possibly gain privileges, via pts read and write operations, related to debian/sysdeps/linux.mk. NOTE: this is not considered a vulnerability in the upstream GNU C Library because the upstream documentation has a clear security recommendation against the --enable-pt_chown option.

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

A memory leak in glibc 2.1.1 (released on May 24, 1999) can be reached and amplified through the LD_HWCAP_MASK environment variable. Please note that many versions of glibc are not vulnerable to this issue if patched for CVE-2017-1000366.

Buffer overflow in the GNU DataDisplay Debugger (DDD) 3.3.1 allows local users to execute arbitrary code and possibly gain privileges via a long HOME environment variable. NOTE: since DDD is not installed setuid or setgid, perhaps this issue should not be included in CVE.

The get_contents function in nss_files/files-XXX.c in the Name Service Switch (NSS) in GNU C Library (aka glibc or libc6) before 2.20 might allow local users to cause a denial of service (heap corruption) or gain privileges via a long line in the NSS files database.

Bash before 4.4 allows local users to execute arbitrary commands with root privileges via crafted SHELLOPTS and PS4 environment variables.

GNU locate in findutils 4.1 on Slackware 7.1 and 8.0 allows local users to gain privileges via an old formatted filename database (locatedb) that contains an entry with an out-of-range offset, which causes locate to write to arbitrary process memory.

The POSIX Capability Linux Security Module (LSM) for Linux kernel 2.6 does not properly handle the credentials of a process that is launched before the module is loaded, which allows local users to gain privileges.

Multiple stack-based buffer overflows in the word-list-compress functionality in compress.c for Aspell allow local users to execute arbitrary code via a long entry in the wordlist that is not properly handled when using the (1) "c" compress option or (2) "d" decompress option.

A flaw was found in grub2 in versions prior to 2.06. Setparam_prefix() in the menu rendering code performs a length calculation on the assumption that expressing a quoted single quote will require 3 characters, while it actually requires 4 characters which allows an attacker to corrupt memory by one byte for each quote in the input. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

uudecode, as available in the sharutils package before 4.2.1, does not check whether the filename of the uudecoded file is a pipe or symbolic link, which could allow attackers to overwrite files or execute commands.

Buffer overflow in ncurses 5.0, and the ncurses4 compatibility package as used in Red Hat Linux, allows local users to gain privileges, related to "routines for moving the physical cursor and scrolling."

Mailman 1.1 allows list administrators to execute arbitrary commands via shell metacharacters in the %(listname) macro expansion.

The unsetenv function in glibc 2.1.1 does not properly unset an environmental variable if the variable is provided twice to a program, which could allow local users to execute arbitrary commands in setuid programs by specifying their own duplicate environmental variables such as LD_PRELOAD or LD_LIBRARY_PATH.

GNU fingerd 1.37 does not properly drop privileges before accessing user information, which could allow local users to (1) gain root privileges via a malicious program in the .fingerrc file, or (2) read arbitrary files via symbolic links from .plan, .forward, or .project files.

A flaw was found in grub2 in versions prior to 2.06. During USB device initialization, descriptors are read with very little bounds checking and assumes the USB device is providing sane values. If properly exploited, an attacker could trigger memory corruption leading to arbitrary code execution allowing a bypass of the Secure Boot mechanism. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

A flaw was found in grub2 in versions prior to 2.06. The rmmod implementation allows the unloading of a module used as a dependency without checking if any other dependent module is still loaded leading to a use-after-free scenario. This could allow arbitrary code to be executed or a bypass of Secure Boot protections. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

In glibc 2.26 and earlier there is confusion in the usage of getcwd() by realpath() which can be used to write before the destination buffer leading to a buffer underflow and potential code execution.

An issue was discovered in GNU Hurd before 0.9 20210404-9. libports accepts fake notification messages from any client on any port, which can lead to port use-after-free. This can be exploited for local privilege escalation to get full root access.

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.

gdb before 6.3 searches the current working directory to load the .gdbinit configuration file, which allows local users to execute arbitrary commands as the user running gdb.

Unknown vulnerability in the dotlock implementation in mailutils before 1:0.5-4 on Debian GNU/Linux allows attackers to gain privileges.

glibc contains a vulnerability that allows specially crafted LD_LIBRARY_PATH values to manipulate the heap/stack, causing them to alias, potentially resulting in arbitrary code execution. Please note that additional hardening changes have been made to glibc to prevent manipulation of stack and heap memory but these issues are not directly exploitable, as such they have not been given a CVE. This affects glibc 2.25 and earlier.

rbash in Bash before 4.4-beta2 did not prevent the shell user from modifying BASH_CMDS, thus allowing the user to execute any command with the permissions of the shell.

Buffer overflow in ncurses library allows local users to execute arbitrary commands via long environmental information such as TERM or TERMINFO_DIRS.

UNIX Symbolic Link (Symlink) Following vulnerability in the packaging of gnump3d in openSUSE Leap 15.1 allows local attackers to escalate from user gnump3d to root. This issue affects: openSUSE Leap 15.1 gnump3d version 3.0-lp151.2.1 and prior versions.

ld.so in the GNU C Library (aka glibc or libc6) before 2.11.3, and 2.12.x before 2.12.2, does not properly restrict use of the LD_AUDIT environment variable to reference dynamic shared objects (DSOs) as audit objects, which allows local users to gain privileges by leveraging an unsafe DSO located in a trusted library directory, as demonstrated by libpcprofile.so.

A flaw was found in grub2 in versions prior to 2.06. The option parser allows an attacker to write past the end of a heap-allocated buffer by calling certain commands with a large number of specific short forms of options. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

The encode_name macro in misc/mntent_r.c in the GNU C Library (aka glibc or libc6) 2.11.1 and earlier, as used by ncpmount and mount.cifs, does not properly handle newline characters in mountpoint names, which allows local users to cause a denial of service (mtab corruption), or possibly modify mount options and gain privileges, via a crafted mount request.

A flaw was found in grub2 in versions prior to 2.06. Variable names present are expanded in the supplied command line into their corresponding variable contents, using a 1kB stack buffer for temporary storage, without sufficient bounds checking. If the function is called with a command line that references a variable with a sufficiently large payload, it is possible to overflow the stack buffer, corrupt the stack frame and control execution which could also circumvent Secure Boot protections. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

The _gnutls_recv_client_kx_message function in lib/gnutls_kx.c in libgnutls in gnutls-serv in GnuTLS before 2.2.4 continues to process Client Hello messages within a TLS message after one has already been processed, which allows remote attackers to cause a denial of service (NULL dereference and crash) via a TLS message containing multiple Client Hello messages, aka GNUTLS-SA-2008-1-2.

An issue was discovered in GNU Hurd before 0.9 20210404-9. The use of an authentication protocol in the proc server is vulnerable to man-in-the-middle attacks, which can be exploited for local privilege escalation to get full root access.

gnump3d 2.9final does not apply password protection to its plugins, which might allow remote attackers to bypass intended access restrictions.

Mutt 1.5.19, when linked against (1) OpenSSL (mutt_ssl.c) or (2) GnuTLS (mutt_ssl_gnutls.c), allows connections when only one TLS certificate in the chain is accepted instead of verifying the entire chain, which allows remote attackers to spoof trusted servers via a man-in-the-middle attack.

On Zyxel NBG2105 V1.00(AAGU.2)C0 devices, setting the login cookie to 1 provides administrator access.

An issue was discovered in BMC PATROL Agent through 11.3.01. It was found that the PatrolCli application can allow for lateral movement and escalation of privilege inside a Windows Active Directory environment. It was found that by default the PatrolCli / PATROL Agent application only verifies if the password provided for the given username is correct; it does not verify the permissions of the user on the network. This means if you have PATROL Agent installed on a high value target (domain controller), you can use a low privileged domain user to authenticate with PatrolCli and then connect to the domain controller and run commands as SYSTEM. This means any user on a domain can escalate to domain admin through PATROL Agent. NOTE: the vendor disputes this because they believe it is adequate to prevent this escalation by means of a custom, non-default configuration

The local management interface in SolarWinds Serv-U FTP Server 15.1.6.25 has incorrect access controls that permit local users to bypass authentication in the application and execute code in the context of the Windows SYSTEM account, leading to privilege escalation. To exploit this vulnerability, an attacker must have local access the the host running Serv-U, and a Serv-U administrator have an active management console session.

A weakness has been identified in iHongRen pptp-vpn 1.0/1.0.1 on macOS. This issue affects the function shouldAcceptNewConnection of the file HelpTool/HelperTool.m of the component XPC Service. This manipulation causes missing authentication. The attack can only be executed locally. The exploit has been made available to the public and could be exploited. The vendor was contacted early about this disclosure but did not respond in any way.

The Floureon IP Camera SP012 provides a root terminal on a UART serial interface without proper access control. This allows attackers with physical access to execute arbitrary commands with root privileges.

* Lack of authentication in Citrix Xen Mobile through 10.8 allows low-privileged local users to execute system commands as root by making requests to private services listening on ports 8000, 30000 and 30001. NOTE: the vendor disputes that this is a vulnerability, stating it is "already mitigated by the internal firewall that limits access to configuration services to localhost.

An issue was discovered in CapMon Access Manager 5.4.1.1005. The client applications of AccessManagerCoreService.exe communicate with this server through named pipes. A user can initiate communication with the server by creating a named pipe and sending commands to achieve elevated privileges.

An issue was discovered in CapMon Access Manager 5.4.1.1005. A regular user can obtain local administrator privileges if they run any whitelisted application through the Custom App Launcher.

The Norton App Lock prior to version 1.3.0.13 can be susceptible to an authentication bypass exploit. In this type of circumstance, the exploit can allow the user to kill the app to prevent it from locking the device, thereby allowing the individual to gain device access.

Unspecified vulnerability in the BIOS F.26 and earlier for the HP Compaq Notebook PC allows physically proximate attackers to obtain privileged access via unspecified vectors, possibly involving an authentication bypass of the power-on password.

In Ionic Identity Vault before 5, a local root attacker on an Android device can bypass biometric authentication.

The SecurityAgent component in Mac OS X 10.4 through 10.4.10 allows attackers with physical access to bypass the authentication dialog of the screen saver and send keystrokes to a process, related to "handling of keyboard focus between secure text fields."

Cisco Trust Agent (CTA) before 2.1.104.0, when running on MacOS X, allows attackers with physical access to bypass authentication and modify System Preferences, including passwords, by invoking the Apple Menu when the Access Control Server (ACS) produces a user notification message after posture validation.