Debian: DSA-2710-1: xml-security-c security update

James Forshaw from Context Information Security discovered several vulnerabilities in xml-security-c, an implementation of the XML Digital Security specification. The Common Vulnerabilities and Exposures project identifies the following problems:

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Debian Security Advisory DSA-2710-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
https://www.debian.org/security/                      Salvatore Bonaccorso
June 18, 2013                          https://www.debian.org/security/faq
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Package        : xml-security-c
Vulnerability  : several
Problem type   : local (remote)
Debian-specific: no
CVE ID         : CVE-2013-2153 CVE-2013-2154 CVE-2013-2155 CVE-2013-2156

James Forshaw from Context Information Security discovered several
vulnerabilities in xml-security-c, an implementation of the XML Digital
Security specification. The Common Vulnerabilities and Exposures project
identifies the following problems:

CVE-2013-2153

    The implementation of XML digital signatures in the Santuario-C++
    library is vulnerable to a spoofing issue allowing an attacker to
    reuse existing signatures with arbitrary content.

CVE-2013-2154

    A stack overflow, possibly leading to arbitrary code execution,
    exists in the processing of malformed XPointer expressions in the
    XML Signature Reference processing code.

CVE-2013-2155

    A bug in the processing of the output length of an HMAC-based XML
    Signature would cause a denial of service when processing specially
    chosen input.

CVE-2013-2156

    A heap overflow exists in the processing of the PrefixList attribute
    optionally used in conjunction with Exclusive Canonicalization,
    potentially allowing arbitary code execution.

For the oldstable distribution (squeeze), these problems have been fixed in
version 1.5.1-3+squeeze2.

For the stable distribution (wheezy), these problems have been fixed in
version 1.6.1-5+deb7u1.

For the unstable distribution (sid), these problems have been fixed in
version 1.6.1-6.

We recommend that you upgrade your xml-security-c packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

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