PT-2015-6674 · Linux+5 · Linux Kernel+5
Daniel Borkmann
·
Published
2015-06-23
·
Updated
2019-04-08
·
CVE-2015-4700
CVSS v2.0
4.9
Medium
| Vector | AV:L/AC:L/Au:N/C:N/I:N/A:C |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 4.0.6
Description
The issue allows local users to cause a denial of service, resulting in a system crash. This is achieved by creating a packet filter and loading crafted BPF instructions that trigger late convergence by the JIT compiler. The
bpf int jit compile function in arch/x86/net/bpf jit comp.c is the vulnerable component.Recommendations
For Linux kernel versions prior to 4.0.6, update to version 4.0.6 or later to resolve the issue. As a temporary workaround, consider restricting the creation of packet filters to minimize the risk of exploitation.
Exploit
Fix
DoS
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Centos
Linux Kernel
Red Hat
Suse
Ubuntu