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Ubuntu 16.04 LTS: USN-2634-1 Security: libxml2 Denial Of Service

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Calendar Grey October 4, 2012
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Ubuntu Security Notice USN-1595-1 details serious libxslt flaws that can lead to application crashes and system attacks.
Applications using libxslt could be made to crash or run programs as your login if they processed a specially crafted file.

Summary

Applications using libxslt could be made to crash or run programs as your

login if they processed a specially crafted file.

Software Description:

- libxslt: XSLT processing library

Details:

Chris Evans discovered that libxslt incorrectly handled generate-id XPath

functions. If a user or automated system were tricked into processing a

specially crafted XSLT document, a remote attacker could obtain potentially

sensitive information. This issue only affected Ubuntu 8.04 LTS, Ubuntu

10.04 LTS and Ubuntu 11.04. (CVE-2011-1202)

It was discovered that libxslt incorrectly parsed certain patterns. If a

user or automated system were tricked into processing a specially crafted

XSLT document, a remote attacker could cause libxslt to crash, causing a

denial of service. (CVE-2011-3970)

Nicholas Gregoire discovered that libxslt incorrectly handled unexpected

DTD nodes. If a user or automated system were tricked into processing a

specially crafted XSLT document, a remote...

Read the Full Advisory

Update Instructions

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

Ubuntu 12.04 LTS:
  libxslt1.1                      1.1.26-8ubuntu1.2

Ubuntu 11.10:
  libxslt1.1                      1.1.26-7ubuntu0.1

Ubuntu 11.04:
  libxslt1.1                      1.1.26-6ubuntu0.1

Ubuntu 10.04 LTS:
  libxslt1.1                      1.1.26-1ubuntu1.1

Ubuntu 8.04 LTS:
  libxslt1.1                      1.1.22-1ubuntu1.3

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

References

CVE-2011-1202, CVE-2011-3970, CVE-2012-2825, CVE-2012-2870,

CVE-2012-2871, CVE-2012-2893

Severity
critical
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October 04, 2012

Package Information

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