openCryptoki before 2.4.1, when using spinlocks, allows local users to create or set world-writable permissions on arbitrary files via a sy…

published 2012-10-10 14 y ago modified 2026-06-16 4 mo ago also EUVD-2012-4385

cvss: 2.9; version 2.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.1%; EPSS 1.1% chance of exploitation in 30 days, percentile 66%
public exploits: 0; none known

openCryptoki before 2.4.1, when using spinlocks, allows local users to create or set world-writable permissions on arbitrary files via a symlink attack on the (1) .pkapi_xpk or (2) .pkcs11spinloc file in /tmp.

Patch / fix

distros 1

opencryptoki Debian 14, Debian 13, Debian 12 3.4.1+dfsg-1

debian advisories DEBIAN-CVE-2012-4454

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2012-4454 updated 2026-11-05 cvss 6.2

opencryptoki: insecure handling of files in the /tmp directory

Red Hat Enterprise Linux 4 openCryptoki Red Hat Enterprise Linux 5 openCryptoki
affected: no fix planned “Will not fix”
Red Hat Enterprise Linux 6 opencryptoki, opencryptoki-libs
affected: no fix available

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.13% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	2.0	2.9	AV:A/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness

CWE-264 Permissions, Privileges, and Access Controls

References

secunia.com /advisories/50702
third-party-advisory, vendor-advisory
openwall.com /lists/oss-security/2012/09/09/2
mailing-list
openwall.com /lists/oss-security/2012/09/25/5
mailing-list
securityfocus.com /bid/55627
vdb-entry
openwall.com /lists/oss-security/2012/09/27/2
mailing-list
sourceforge.net /mailarchive/message.php?msg_id=28878345
mailing-list
openwall.com /lists/oss-security/2012/09/20/6
mailing-list
bugzilla.redhat.com /show_bug.cgi?id=730636
exchange.xforce.ibmcloud.com /vulnerabilities/78797
vdb-entry
openwall.com /lists/oss-security/2012/09/07/2
mailing-list
opencryptoki.git.sourceforge.net /git/gitweb.cgi?p=opencryptoki/opencryptoki%3Ba=commitdiff%3Bh=b7fcb3eb0319183348f1f4fb90ede4edd6487c30
opencryptoki.git.sourceforge.net /git/gitweb.cgi?p=opencryptoki/opencryptoki%3Ba=commitdiff%3Bh=58345488c9351d9be9a4be27c8b407c2706a33a9
openwall.com /lists/oss-security/2012/09/07/6
mailing-list

Sources

CVE List CVE-2012-4454
NVD CVE-2012-4454

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary