critical
9.8
CWE
787 119
Advisory Published
CVE Published
Updated

CVE-2017-2885: Buffer Overflow

First published: Tue Aug 08 2017(Updated: )

A stack based buffer overflow vulnerability has been reported in GNOME libsoup 2.58. The flaw is caused due to a boundary error within the "soup_filter_input_stream_read_until()" function when parsing chunk encoded HTTP traffic and affects both the server and client functionality of libsoup. A remote attacker could exploit this flaw to cause a crash or, potentially, execute arbitrary code by sending a specially crafted HTTP request to a server using the libsoup HTTP server functionality or by tricking a user into connecting to a malicious HTTP server with an application using the libsoup HTTP client functionality. Please note that the libsoup packages as shipped with Red Hat Enterprise Linux 7 contain a "stack smashing protection" mitigation for the relevant function, which makes exploitation significantly harder. Thus, in most cases an exploitation attempt should be mitigated to a mere crash. However, successful exploitation to execute arbitrary code can't be ruled out entirely.

Credit: talos-cna@cisco.com

Affected SoftwareAffected VersionHow to fix
debian/libsoup2.4
2.64.2-2
2.72.0-2
2.74.3-1
redhat/libsoup<2.59.90.1
2.59.90.1
redhat/libsoup<2.58.2
2.58.2
libsoup=2.58
Debian Linux=8.0
Debian Linux=9.0
Red Hat Enterprise Linux Desktop=7.0
Red Hat Enterprise Linux Server=7.0
Red Hat Enterprise Linux Server=7.4
Red Hat Enterprise Linux Server=7.4
Red Hat Enterprise Linux Server=7.5
Red Hat Enterprise Linux Server=7.4
Red Hat Enterprise Linux Workstation=7.0

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2017-2885?

    CVE-2017-2885 is classified as a high-severity vulnerability due to its potential to cause a stack-based buffer overflow.

  • How do I fix CVE-2017-2885?

    To fix CVE-2017-2885, upgrade your libsoup package to version 2.64.2-2 or later if using Debian, or 2.59.90.1 or later if using Red Hat.

  • Which versions are affected by CVE-2017-2885?

    Affected versions of libsoup include versions up to 2.58 for Debian and versions prior to 2.59.90.1 for Red Hat.

  • Is CVE-2017-2885 still exploitable in the latest versions?

    No, CVE-2017-2885 is not exploitable in the latest versions of libsoup, as they have patched the buffer overflow vulnerability.

  • Do both server and client components of libsoup need updates for CVE-2017-2885?

    Yes, both server and client components of libsoup are affected and require updates to mitigate the CVE-2017-2885 vulnerability.

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