Advisory Published

USN-3010-1: Expat vulnerabilities

First published: Mon Jun 20 2016(Updated: )

It was discovered that Expat unexpectedly called srand in certain circumstances. This could reduce the security of calling applications. (CVE-2012-6702) It was discovered that Expat incorrectly handled seeding the random number generator. A remote attacker could possibly use this issue to cause a denial of service. (CVE-2016-5300)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/lib64expat1<2.1.0-7ubuntu0.16.04.2
2.1.0-7ubuntu0.16.04.2
Ubuntu Ubuntu=16.04
All of
ubuntu/libexpat1<2.1.0-7ubuntu0.16.04.2
2.1.0-7ubuntu0.16.04.2
Ubuntu Ubuntu=16.04
All of
ubuntu/lib64expat1<2.1.0-7ubuntu0.15.10.2
2.1.0-7ubuntu0.15.10.2
Ubuntu Ubuntu=15.10
All of
ubuntu/libexpat1<2.1.0-7ubuntu0.15.10.2
2.1.0-7ubuntu0.15.10.2
Ubuntu Ubuntu=15.10
All of
ubuntu/lib64expat1<2.1.0-4ubuntu1.3
2.1.0-4ubuntu1.3
Ubuntu Ubuntu=14.04
All of
ubuntu/libexpat1<2.1.0-4ubuntu1.3
2.1.0-4ubuntu1.3
Ubuntu Ubuntu=14.04
All of
ubuntu/lib64expat1<2.0.1-7.2ubuntu1.4
2.0.1-7.2ubuntu1.4
Ubuntu Ubuntu=12.04
All of
ubuntu/libexpat1<2.0.1-7.2ubuntu1.4
2.0.1-7.2ubuntu1.4
Ubuntu Ubuntu=12.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability in USN-3010-1?

    Expat vulnerabilities CVE-2012-6702 and CVE-2016-5300.

  • How does the vulnerability in USN-3010-1 affect the security of calling applications?

    The vulnerability could reduce the security of calling applications.

  • Which versions of libexpat1 are affected by the vulnerability in USN-3010-1?

    Versions 2.0.1-7.2ubuntu1.4, 2.1.0-4ubuntu1.3, 2.1.0-7ubuntu0.15.10.2, and 2.1.0-7ubuntu0.16.04.2 are affected.

  • What is the recommended remedy for the vulnerability in USN-3010-1?

    Updating libexpat1 to version 2.1.0-7ubuntu0.16.04.2 or higher.

  • Where can I find more information about the vulnerability in USN-3010-1?

    More information can be found at the following references: [CVE-2012-6702](https://ubuntu.com/security/CVE-2012-6702), [CVE-2016-5300](https://ubuntu.com/security/CVE-2016-5300), [USN-3013-1](https://ubuntu.com/security/notices/USN-3013-1).

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