libgdata: Man-in-the-Middle attack

1. Gentoo Linux Security Advisory

Package	Vulnerable versions	Unaffected versions	Architecture(s)
dev-libs/libgdata	< 0.8.1-r2	>= 0.8.1-r2	All supported architectures

Related bugreports: #408245

A vulnerability in libgdata could allow remote attackers to perform man-in-the-middle attacks.

2. Impact Information

libgdata is a GLib-based library for accessing online service APIs using the GData protocol.

An error in the "_gdata_service_build_session()" function of gdata-service.c prevents libgdata from properly validating certificates.

A remote attacker could perform man-in-the-middle attacks to spoof arbitrary SSL servers via a crafted certificate.

3. Resolution Information

There is no known workaround at this time.

All libgdata users should upgrade to the latest version:

Code Listing 3.1: Resolution

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-libs/libgdata-0.8.1-r2"

4. References

Page updated August 14, 2012

Summary: This is a Gentoo Linux Security Advisory

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