CVE-2026-48065

The CVE-2026-48065 issue affects pam_usb for Linux prior to version 0.9.1. In src/conf.c, heap memory is allocated as size proportional to n_devices (derived from libxml2 XPath on the config file) without an upper bound. On 32-bit targets (armv7l, i686 listed in the Makefile), n_devices * sizeof(...

CVE-2026-48065 pam_usb: Unchecked integer multiplication before xmalloc() in conf.c allows heap-based buffer overflow on 32-bit targets

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.1, src/conf.c allocates heap memory proportional to ndevices, a count derived from libxml2 XPath evaluation of the config file, without first enforcing an upper bound. On 32-bit targets armv7l, i686 --...

CVE-2026-48065 pam_usb: Unchecked integer multiplication before xmalloc() in conf.c allows heap-based buffer overflow on 32-bit targets

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.1, src/conf.c allocates heap memory proportional to ndevices, a count derived from libxml2 XPath evaluation of the config file, without first enforcing an upper bound. On 32-bit targets armv7l, i686 --...

CVE-2026-48066 pam_usb: Thread-unsafe static pointer in log.c causes data race under concurrent PAM authentication

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.1, src/log.c contains a process-wide static pointer that is written on every PAM invocation with the address of a stack-local variable. This violates the PAM re-entrancy requirement and creates a data...

CVE-2026-48066

pam_usb fixes a thread-unsafe behavior: before 0.9.1, src/log.c used a process-wide static pointer written on every PAM invocation to a stack-local address, creating a data race when PAM is invoked concurrently by multiple threads. The issue is resolved in version 0.9.1. Affected component: pam_u...

CVE-2026-48066 pam_usb: Thread-unsafe static pointer in log.c causes data race under concurrent PAM authentication

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.1, src/log.c contains a process-wide static pointer that is written on every PAM invocation with the address of a stack-local variable. This violates the PAM re-entrancy requirement and creates a data...

CVE-2026-48792 pam_usb: pusb_has_virtual_input_device() silently discards EACCES, disabling remote desktop detection under non-root execution

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.1, src/evdev.c silently ignores EACCES errors when opening /dev/input/event nodes, causing pusbhasvirtualinputdevice to return 0 no virtual devices found even when every open call failed due to...

CVE-2026-48792

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.1, src/evdev.c silently ignores EACCES errors when opening /dev/input/event nodes, causing pusbhasvirtualinputdevice to return 0 no virtual devices found even when every open call failed due to...

CVE-2026-48792 pam_usb: pusb_has_virtual_input_device() silently discards EACCES, disabling remote desktop detection under non-root execution

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.1, src/evdev.c silently ignores EACCES errors when opening /dev/input/event nodes, causing pusbhasvirtualinputdevice to return 0 no virtual devices found even when every open call failed due to...

CVE-2026-48792

The connected sources confirm a vulnerability in pam_usb for Linux prior to 0.9.1: evdev.c silently ignores EACCES when opening /dev/input/event* nodes, causing pusb_has_virtual_input_device() to incorrectly report no virtual devices even if opens fail due to insufficient permissions. As a result...

pam_usb 参数注入漏洞

pamusb is a Linux hardware authentication tool developed by McDope’s individual developer, based on USB devices. Versions of pamusb prior to 0.8.7 contained a parameter injection vulnerability. This vulnerability stems from the use of specially crafted UUIDs in configurations e.g., $id/tmp/rce,...

pam_usb 安全漏洞

pamusb is a Linux hardware authentication tool developed by McDope’s individual developer, based on USB devices. Versions of pamusb prior to 0.8.7 contain security vulnerabilities. These vulnerabilities stem from the code in src/tmux.c, which reads the user’s $TMUX environment variable and insert...

PT-2026-44087

pam usb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.0, multiple pam usb helper tools resolved external binaries through the PATH environment variable rather than using absolute paths. An attacker who can influence the process environment during PAM...

PT-2026-44084

pam usb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.0, src/mem.c implemented out-of-memory guards for xmalloc, xrealloc, and xstrdup using assertdata != NULL. The C standard specifies that all assert expressions are compiled out when NDEBUG is defined a...

pam_usb 代码问题漏洞

pamusb is a Linux hardware authentication tool developed by McDope’s individual developer, based on USB devices. Versions of pamusb prior to 0.9.0 have code vulnerabilities. These vulnerabilities stem from multiple auxiliary tools resolving external binary files through the PATH environment...

PT-2026-44115

Name of the Vulnerable Software and Affected Versions pam usb versions prior to 0.9.0 Description This issue occurs in the deny remote feature of the PAM module, which is loaded into host processes such as sudo, login, GDM, and GNOME Shell. In multi-threaded environments like GDM, three functions...

pam_usb 访问控制错误漏洞

pamusb is a Linux hardware authentication tool developed by McDope’s individual developer, based on USB devices. Versions of pamusb prior to 0.9.0 contained an access control vulnerability; this vulnerability stemmed from the denyremote function, which only checks the first 32-bit word of utaddrv...

pam_usb 代码问题漏洞

pamusb is a Linux hardware authentication tool developed by McDope’s individual developer, based on USB devices. Versions of pamusb prior to 0.9.0 have code vulnerabilities. These vulnerabilities arise from assertions being compiled and removed during memory allocation failures, leading to null...

pam_usb 安全漏洞

pamusb is a Linux hardware authentication tool developed by McDope’s individual developer, based on USB devices. Versions of pamusb prior to 0.9.1 contained security vulnerabilities. These vulnerabilities occurred when the denyremote setting was set to false, causing the PAMRHOST check to be...

pam_usb 授权问题漏洞

pamusb is a Linux hardware authentication tool developed by McDope’s individual developer, based on USB devices. Versions of pamusb prior to 0.8.7 have a vulnerability related to authorization issues. This vulnerability stems from symbolic link attacks involving the pad directory and pad files,...