CVE-2026-44710

Description

pam_usb provides hardware authentication for Linux using ordinary removable media. Prior to 0.8.7, src/device.c passed the return values of udisks_drive_get_serial(), udisks_drive_get_vendor(), and udisks_drive_get_model() directly to strcmp() without NULL checks. The GIO/UDisks API documentation states these accessors can return NULL for devices that do not expose the corresponding field. Passing NULL to strcmp() is undefined behaviour (typically a SIGSEGV). This vulnerability is fixed in 0.8.7.

PUBLISHED Reserved 2026-05-07 | Published 2026-05-27 | Updated 2026-05-28 | Assigner GitHub_M

Problem types

CWE-476: NULL Pointer Dereference

Product status

References

github.com/...am_usb/security/advisories/GHSA-j8cq-2gv6-gfwf

cve.org (CVE-2026-44710)

nvd.nist.gov (CVE-2026-44710)

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