VulnerabilityDeferred

CVE-2026-44710

The GIO/UDisks API documentation states these accessors can return NULL for devices that do not expose the corresponding field.

MEDIUM 4.6EPSS 0.18%

Does this matter?

Lower severity and a low EPSS score (0.18%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 3.1: 4.6 MEDIUMCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.18% probability · 8th percentile
CISA KEV: Not listed
Weakness: CWE-476
Source: security-advisories@github.com

References

https://github.com/mcdope/pam_usb/security/advisories/GHSA-j8cq-2gv6-gfwf

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.