CVE-2026-48064

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.1, when a PAM service is configured with denyremote=false in pamusb commonly done for display managers such as gdm-password or lightdm to bypass process/TTY heuristics for local sessions, the PAMRHOST...

CVE-2026-47269

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.0, pamusb's denyremote feature checks utmpx utaddrv6 to detect whether an authentication request originates from a remote session. The outer guard was if utent-utaddrv60 != 0, which only tests the first...

CVE-2026-48064

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.1, when a PAM service is configured with denyremote=false in pamusb commonly done for display managers such as gdm-password or lightdm to bypass process/TTY heuristics for local sessions, the PAMRHOST...

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-2026-44087

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-2026-44114

Name of the Vulnerable Software and Affected Versions pam usb versions prior to 0.9.0 Description The deny remote feature incorrectly classifies IPv4-mapped IPv6 remote connections as local sessions. This occurs because the system checks the ut addr v6 field of utmpx using a guard if utent-ut add...

The Difficulty of Un-Authentication

By Bruce Schneier In computer security, a lot of effort is spent on the authentication problem. Whether it’s passwords, secure tokens, secret questions, image mnemonics, or something else, engineers are continually coming up with more complicated — and hopefully more secure — ways for you to prov...