Linux Kernel 3.18 Instruction Decoder resource management

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel 3.18. It has been rated as problematic. This issue affects some unknown processing of the component Instruction Decoder. Performing a manipulation results in resource management. This vulnerability is identified as CVE-2014-8480. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, was found in Linux Kernel 3.18 (Operating System). This affects an unknown function of the component Instruction Decoder. The manipulation with an unknown input leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on availability.

The weakness was released 10/24/2014 by Nadav Amit as confirmed mailinglist post (oss-sec). The advisory is shared at seclists.org. This vulnerability is uniquely identified as CVE-2014-8480 since 10/24/2014. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The advisory points out:

Nadav Amit discovered an error in the instruction decoder that would cause certain RIP-relative instructions to OOPS the decoder. Specifically, rather than adding RIP to the operand address, RIP would be added to *0 from the host's perspective.

The vulnerability scanner Nessus provides a plugin with the ID 78814 (Fedora 21 : kernel-3.17.2-300.fc21 (2014-14126)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 122939 (Fedora Security Update for kernel (FEDORA-2014-1412)).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (97750), Tenable (78814), SecurityFocus (BID 70710†) and Vulnerability Center (SBV-46772†). Entry connected to this vulnerability is available at VDB-68062. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 7.5
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 78814
Nessus Name: Fedora 21 : kernel-3.17.2-300.fc21 (2014-14126)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: 3f6f1480d86bf9fc16c160d803ab1d006e3058d5

Timelineinfo

10/24/2014 🔍
10/24/2014 +0 days 🔍
10/24/2014 +0 days 🔍
10/24/2014 +0 days 🔍
10/26/2014 +2 days 🔍
10/27/2014 +1 days 🔍
11/10/2014 +14 days 🔍
02/23/2022 +2662 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: 3f6f1480d86bf9fc16c160d803ab1d006e3058d5
Researcher: Nadav Amit
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-8480 (🔍)
GCVE (CVE): GCVE-0-2014-8480
GCVE (VulDB): GCVE-100-68061
X-Force: 97750 - Linux Kernel instruction decoder denial of service, High Risk
SecurityFocus: 70710
Vulnerability Center: 46772 - Linux Kernel 3.17 and Earlier Local DoS due to Improper Instructions Handling - CVE-2014-8480, Medium

See also: 🔍

Entryinfo

Created: 10/27/2014 09:25
Updated: 02/23/2022 17:30
Changes: 10/27/2014 09:25 (70), 06/10/2017 09:27 (2), 02/23/2022 17:23 (6), 02/23/2022 17:30 (1)
Complete: 🔍
Cache ID: 216:128:103

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