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

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...

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...

PT-2026-44085

pam usb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.0, the pusb pad compare function in src/pad.c only verified that the user-side pad /.pamusb/device.pad could be read, but did not enforce that the system-side pad the pad file on the USB device was als...

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...

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 stemmed from the silent ignoring of EACCES errors in the src/evdev.c file. This could lead t...

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...

CVE-2026-48066: Concurrent Execution using Shared Resource with Improper Synchronization

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...

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 0.8.7 have code vulnerabilities. This vulnerability stems from the fact that in src/device.c, the return values of udisksdrivegetserial, udisksdrivegetvendo...

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 0.9.1 contained code vulnerabilities. This vulnerability stemmed from the fact that the src/log.c file contained a process-level static pointer; each PAM ca...

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 0.9.0 contain security vulnerabilities; these vulnerabilities stem from the lack of mandatory verification of the system-side pad file, which could allow...

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...

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...

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 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,...