NULL pointer dereference in Linux kernel - CVE-2013-6432
Published: December 9, 2013 / Updated: August 10, 2020
Vulnerability identifier: #VU42244
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2013-6432
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in net/ipv4/ping.c in the Linux kernel before 3.12.4 does not properly interact with read system calls on ping sockets, which allows local users to cause a denial of service (NULL pointer dereference and system crash) by leveraging unspecified privileges to execute a crafted application. Per: http://cwe.mitre.org/data/definitions/476. A remote attacker can perform a denial of service (DoS) attack.
How to mitigate CVE-2013-6432
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
Sources
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=cf970c002d270c36202bd5b9c2804d3097a52da0
- http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00003.html
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.12.4
- http://www.openwall.com/lists/oss-security/2013/12/06/6
- http://www.ubuntu.com/usn/USN-2113-1
- http://www.ubuntu.com/usn/USN-2117-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1039046
- https://github.com/torvalds/linux/commit/cf970c002d270c36202bd5b9c2804d3097a52da0