Input validation error in Linux kernel - CVE-2014-2739
Published: April 15, 2014 / Updated: August 10, 2020
Vulnerability identifier: #VU41819
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2014-2739
CWE-ID: CWE-20
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The cma_req_handler function in drivers/infiniband/core/cma.c in the Linux kernel 3.14.x through 3.14.1 attempts to resolve an RDMA over Converged Ethernet (aka RoCE) address that is properly resolved within a different module, which allows remote attackers to cause a denial of service (incorrect pointer dereference and system crash) via crafted network traffic.
How to mitigate CVE-2014-2739
Install update from vendor's website.
Sources
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b2853fd6c2d0f383dbdf7427e263eb576a633867
- http://www.openwall.com/lists/oss-security/2014/04/10/9
- http://www.securityfocus.com/bid/66716
- https://bugzilla.redhat.com/show_bug.cgi?id=1085415
- https://github.com/torvalds/linux/commit/b2853fd6c2d0f383dbdf7427e263eb576a633867