Alerts This Week
Warning Icon 1 1,229
Alerts This Week
Warning Icon 1 1,229

Ubuntu 7346-2: OpenSC Security Advisory Updates

ubuntu
Calendar Grey March 28, 2025
Dist Ubuntu Esm H88
Ubuntu 20.04, 18.04, and 16.04 face OpenSC regression issues causing potential denial of service. Security updates advised.
USN-7346-1 introduced a regression in OpenSC.

Summary

USN-7346-1 introduced a regression in OpenSC.

Software Description:

- opensc: Smart card utilities with support for PKCS#15 compatible cards

Details:

USN-7346-1 fixed vulnerabilities in OpenSC. The update introduced a

regression in Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS. The

security fix has been removed pending further investigation.

We apologize for the inconvenience.

Original advisory details:

 It was discovered that OpenSC did not correctly handle certain memory

 operations, which could lead to a use-after-free vulnerability. An

 attacker could possibly use this issue to cause a denial of service or

 execute arbitrary code. This issue only affected Ubuntu 16.04 LTS,

 Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2021-42780)

 It was discovered that OpenSC did not correctly handle certain memory

 operations, which could lead to a stack buffer overflow. An attacker

 could possibly use this issue to cause a denial of se...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service buffer overflow Ubuntu regression OpenSC

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 20.04 LTS
   opensc                          0.20.0-3ubuntu0.1~esm3
                                   Available with Ubuntu Pro
   opensc-pkcs11                   0.20.0-3ubuntu0.1~esm3
                                   Available with Ubuntu Pro

Ubuntu 18.04 LTS
   opensc                          0.17.0-3ubuntu0.1~esm3
                                   Available with Ubuntu Pro
   opensc-pkcs11                   0.17.0-3ubuntu0.1~esm3
                                   Available with Ubuntu Pro

Ubuntu 16.04 LTS
   opensc                          0.15.0-1ubuntu1+esm3
                                   Available with Ubuntu Pro
   opensc-pkcs11                   0.15.0-1ubuntu1+esm3
                                   Available with Ubuntu Pro

In general, a standard system update will make all the necessary changes.

References

  https://ubuntu.com/security/notices/USN-7346-2

  https://ubuntu.com/security/notices/USN-7346-1

  https://bugs.launchpad.net/ubuntu/+source/opensc/+bug/2104948

Ubuntu Security Notice USN-7346-2

Topics%20covered

Topics Covered

security advisory denial of service buffer overflow Ubuntu regression OpenSC

Package Information

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here