Buffer overflow in librest - CVE-2015-2675
Published: August 18, 2017 / Updated: August 8, 2020
Vulnerability identifier: #VU38459
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2015-2675
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Gnome Development Team
Affected software:
librest
librest
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The OAuth implementation in librest before 0.7.93 incorrectly truncates the pointer returned by the rest_proxy_call_get_url function, which allows remote attackers to cause a denial of service (application crash) via running the EnsureCredentials method from the org.gnome.OnlineAccounts.Account interface on an object representing a Flickr account.
How to mitigate CVE-2015-2675
Install update from vendor's website.
Sources
- http://rhn.redhat.com/errata/RHSA-2015-2237.html
- http://www.openwall.com/lists/oss-security/2015/03/23/8
- https://bugzilla.gnome.org/show_bug.cgi?id=742644
- https://bugzilla.redhat.com/show_bug.cgi?id=1183982
- https://bugzilla.redhat.com/show_bug.cgi?id=1199049
- https://git.gnome.org/browse/librest/commit/?id=b50ace7738ea03817acdad87fb2b338a86018329