nss: /pkcs11.txt and /secmod.db files read on initialization
Published Oct 28, 2011
7.1
HIGHCVSS 2.0
EPSS 1.40%
Description
Untrusted search path vulnerability in Mozilla Network Security Services (NSS), as used in Google Chrome before 17 on Windows and Mac OS X, might allow local users to gain privileges via a Trojan horse pkcs11.txt file in a top-level directory. NOTE: the vendor's response was "Strange behavior, but we're not treating this as a security bug."
Affected products
No data.
No data.
Red Hat Enterprise Linux 4
nss
Not affected
Red Hat Enterprise Linux 5
nss
Not affected
Red Hat Enterprise Linux 6
nss
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 4 | nss | Not affected | n/a |
| Red Hat Enterprise Linux 5 | nss | Not affected | n/a |
| Red Hat Enterprise Linux 6 | nss | Affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:H/Au:S/C:C/I:C/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.40% (0.01395) | 71.41th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.40% (0.01395) | 68.77th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.34% (0.00342) | 54.64th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.14% (0.00139) | 51.02th | v3 (v2023.03.01) |
| Jun 26, 2024 | 0.14% (0.00139) | 49.74th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.14% (0.00139) | 47.74th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.11% (0.01108) | 55.18th | v2 (v2022.01.01) |
| Feb 24, 2023 | 1.11% (0.01108) | 55.10th | v2 (v2022.01.01) |
| Feb 13, 2023 | 5.61% (0.05608) | 89.72th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.11% (0.01108) | 53.57th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.11% (0.01108) | 51.54th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.11% (0.01108) | 29.61th | v2 (v2022.01.01) |
References (11)
- http://blog.acrossecurity.com/2011/10/google-chrome-pkcs11txt-file-planting.html ExploitThird Party Advisory
- http://code.google.com/p/chromium/issues/detail?id=97426 ExploitIssue TrackingPatchVendor Advisory
- http://securityreason.com/securityalert/8483 third-party-advisoryThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2011-3640 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=641052 Issue TrackingPatchThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=748379 Issue Tracking
- https://hermes.opensuse.org/messages/13154861 vendor-advisoryBroken Link
- https://hermes.opensuse.org/messages/13155432 vendor-advisoryBroken Link
- https://nvd.nist.gov/vuln/detail/CVE-2011-3640
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13414 vdb-entrysignatureThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2011-3640
| Link | Providers | Tags |
|---|---|---|
| http://blog.acrossecurity.com/2011/10/google-chrome-pkcs11txt-file-planting.html | ExploitThird Party Advisory | |
| http://code.google.com/p/chromium/issues/detail?id=97426 | ExploitIssue TrackingPatchVendor Advisory | |
| http://securityreason.com/securityalert/8483 | third-party-advisoryThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2011-3640 | Vendor Advisory | |
| https://bugzilla.mozilla.org/show_bug.cgi?id=641052 | Issue TrackingPatchThird Party Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=748379 | Issue Tracking | |
| https://hermes.opensuse.org/messages/13154861 | vendor-advisoryBroken Link | |
| https://hermes.opensuse.org/messages/13155432 | vendor-advisoryBroken Link | |
| https://nvd.nist.gov/vuln/detail/CVE-2011-3640 | ||
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13414 | vdb-entrysignatureThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2011-3640 |
Change history (0)
No recorded changes yet.