Linux Kernel
CVE-2014-3145
MEDIUM
Severity by source
AV:L/AC:L/Au:N/C:N/I:N/A:C
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
AV:L/AC:L/Au:N/C:N/I:N/A:C
Lifecycle Timeline
1DescriptionCVE.org
The BPF_S_ANC_NLATTR_NEST extension implementation in the sk_run_filter function in net/core/filter.c in the Linux kernel through 3.14.3 uses the reverse order in a certain subtraction, which allows local users to cause a denial of service (over-read and system crash) via crafted BPF instructions. NOTE: the affected code was moved to the __skb_get_nlattr_nest function before the vulnerability was announced.
AnalysisAI
The BPF_S_ANC_NLATTR_NEST extension implementation in the sk_run_filter function in net/core/filter.c in the Linux kernel through 3.14.3 uses the reverse order in a certain subtraction, which allows. Rated medium severity (CVSS 4.9), this vulnerability is low attack complexity. Public exploit code available.
Technical ContextAI
This vulnerability is classified as Out-of-bounds Read (CWE-125), which allows attackers to read data from memory outside the intended buffer boundaries. The BPF_S_ANC_NLATTR_NEST extension implementation in the sk_run_filter function in net/core/filter.c in the Linux kernel through 3.14.3 uses the reverse order in a certain subtraction, which allows local users to cause a denial of service (over-read and system crash) via crafted BPF instructions. NOTE: the affected code was moved to the __skb_get_nlattr_nest function before the vulnerability was announced. Affected products include: Linux Linux Kernel, Oracle Linux, Canonical Ubuntu Linux, Debian Debian Linux. Version information: through 3.14.3.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Validate array indices and buffer lengths. Use memory-safe languages. Enable AddressSanitizer during testing.
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View allSame technique Denial Of Service
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External POC / Exploit Code
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