Input validation error in polkit - CVE-2015-4625
Published: October 26, 2015 / Updated: August 4, 2020
Vulnerability identifier: #VU33727
CSH Severity: Medium
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2015-4625
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
Integer overflow in the authentication_agent_new_cookie function in PolicyKit (aka polkit) before 0.113 allows local users to gain privileges by creating a large number of connections, which triggers the issuance of a duplicate cookie value.
Affected software
polkit
polkit (Alpine package)
polkit (Alpine package)
How to mitigate CVE-2015-4625
Install update from vendor's website.
polkit - update to 0.113
polkit (Alpine package) - addressed in versions 0.105-r3, 0.105-r4
polkit (Alpine package) - addressed in versions 0.105-r3, 0.105-r4
External References
- http://lists.fedoraproject.org/pipermail/package-announce/2015-July/161721.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162294.html
- http://lists.freedesktop.org/archives/polkit-devel/2015-July/000432.html
- http://lists.freedesktop.org/archives/polkit-devel/2015-June/000427.html
- http://lists.freedesktop.org/archives/polkit-devel/2015-May/000419.html
- http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00010.html
- http://lists.opensuse.org/opensuse-updates/2015-11/msg00042.html
- http://www.openwall.com/lists/oss-security/2015/06/08/3
- http://www.openwall.com/lists/oss-security/2015/06/09/1
- http://www.openwall.com/lists/oss-security/2015/06/16/21
- http://www.securityfocus.com/bid/75267
- http://www.securitytracker.com/id/1035023