Packages
- opencryptoki - A PKCS#11 Cryptographic Token Interface Standard implementation.
Details
It was discovered that primitive decoders in openCryptoki produced integer
underflows when the encoded length was zero. An attacker could possibly use
this issue to trigger out-of-bounds reads. (CVE-2026-40253)
It was discovered that openCryptoki incorrectly handled symlinks. An
attacker in the token-group could possibly use this issue to achieve
privilege escalation or access sensitive information. (CVE-2026-23893)
It was discovered that primitive decoders in openCryptoki produced integer
underflows when the encoded length was zero. An attacker could possibly use
this issue to trigger out-of-bounds reads. (CVE-2026-40253)
It was discovered that openCryptoki incorrectly handled symlinks. An
attacker in the token-group could possibly use this issue to achieve
privilege escalation or access sensitive information. (CVE-2026-23893)
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 24.04 LTS noble | libopencryptoki-dev – 3.23.0+dfsg-0ubuntu3.1 | ||
| libopencryptoki0 – 3.23.0+dfsg-0ubuntu3.1 | |||
| opencryptoki – 3.23.0+dfsg-0ubuntu3.1 | |||
| 22.04 LTS jammy | libopencryptoki-dev – 3.17.0+dfsg+20220202.b40982e-0ubuntu1.3 | ||
| libopencryptoki0 – 3.17.0+dfsg+20220202.b40982e-0ubuntu1.3 | |||
| opencryptoki – 3.17.0+dfsg+20220202.b40982e-0ubuntu1.3 | |||
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