CVE-2026-44710

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Source

https://cve.org/CVERecord?id=CVE-2026-44710

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44710.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-44710

Aliases

GHSA-j8cq-2gv6-gfwf

Published

2026-05-27T20:19:35.374Z

Modified

2026-07-08T08:13:28.286549586Z

Severity

4.6 (Medium) CVSS_V3 - CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator

Summary

pam_usb: NULL pointer dereference from UDisks device fields causes PAM crash and login denial-of-service

Details

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.8.7, src/device.c passed the return values of udisksdrivegetserial(), udisksdrivegetvendor(), and udisksdrivegetmodel() 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.

Database specific

{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44710.json",
    "cwe_ids": [
        "CWE-476"
    ],
    "cna_assigner": "GitHub_M"
}

References

Affected packages

Git / github.com/mcdope/pam_usb

Affected ranges

Type

GIT

Repo

https://github.com/mcdope/pam_usb

Events

Introduced

Fixed

987f4f6ddf0a8c75ddd5f05b19b863220efe9005

Database specific

{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.8.7"
        }
    ]
}

Affected versions

0.*

0.5.0

0.7.1

0.7.2

0.7.3

0.8.3

0.8.4

v0.*

v0.7.0

v0.8.0

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44710.json"