Input validation error - CVE-2015-7799
Published: October 19, 2015 / Updated: August 4, 2020
Vulnerability identifier: #VU33641
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2015-7799
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows local users to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (NULL pointer dereference and system crash) via a crafted PPPIOCSMAXCID ioctl call.
Affected software
linux-grsec (Alpine package)
kernel
Fedora
kernel
Fedora
How to mitigate CVE-2015-7799
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
kernel - addressed in versions 4.1.13-100.fc21, 4.2.6-200.fc22, 4.2.6-300.fc23
External References
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00005.html
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00018.html
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00026.html
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00031.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html
- http://lists.opensuse.org/opensuse-updates/2015-12/msg00039.html
- http://www.debian.org/security/2015/dsa-3426
- http://www.openwall.com/lists/oss-security/2015/10/10/3
- http://www.securityfocus.com/bid/77033
- http://www.securitytracker.com/id/1033809
- http://www.ubuntu.com/usn/USN-2841-1
- http://www.ubuntu.com/usn/USN-2841-2
- http://www.ubuntu.com/usn/USN-2842-1
- http://www.ubuntu.com/usn/USN-2842-2
- http://www.ubuntu.com/usn/USN-2843-1
- http://www.ubuntu.com/usn/USN-2843-2
- http://www.ubuntu.com/usn/USN-2843-3
- http://www.ubuntu.com/usn/USN-2844-1
- http://www.ubuntu.com/usn/USN-2886-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1271134
- https://code.google.com/p/android/issues/detail?id=187973