Race condition in accountsservice - CVE-2012-2737
Published: July 22, 2012 / Updated: August 11, 2020
Vulnerability identifier: #VU43801
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2012-2737
CWE-ID: CWE-362
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Freedesktop.org
Affected software:
accountsservice
accountsservice
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
The user_change_icon_file_authorized_cb function in /usr/libexec/accounts-daemon in AccountsService before 0.6.22 does not properly check the UID when copying an icon file to the system cache directory, which allows local users to read arbitrary files via a race condition.
How to mitigate CVE-2012-2737
Install update from vendor's website.
Sources
- http://cgit.freedesktop.org/accountsservice/commit/?id=26213aa0e0d8dca5f36cc23f6942525224cbe9f5
- http://cgit.freedesktop.org/accountsservice/commit/?id=27f3d93a82fde4f6c7ab54f3f008af04f93f9c69
- http://cgit.freedesktop.org/accountsservice/commit/?id=4c5b12e363410e490e776e4b4a86dcce157a543d
- http://cgit.freedesktop.org/accountsservice/commit/?id=bd51aa4cdac380f55d607f4ffdf2ab3c00d08721
- http://lists.fedoraproject.org/pipermail/package-announce/2012-July/083359.html
- http://osvdb.org/83398
- http://secunia.com/advisories/49695
- http://secunia.com/advisories/49759
- http://www.openwall.com/lists/oss-security/2012/06/28/9
- http://www.securityfocus.com/bid/54223
- http://www.ubuntu.com/usn/USN-1485-1
- https://bugzilla.redhat.com/show_bug.cgi?id=832532
- https://exchange.xforce.ibmcloud.com/vulnerabilities/76648
- https://hermes.opensuse.org/messages/15100967