Linux Kernel 4.0.5 SCSI Driver drivers/scsi/sg.c start_req numeric error
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.2 | $0-$5k | 0.00 |
A vulnerability has been found in Linux Kernel 4.0.5 (Operating System) and classified as problematic. Affected by this vulnerability is the function start_req
of the file drivers/scsi/sg.c of the component SCSI Driver. The manipulation with an unknown input leads to a numeric error vulnerability. The CWE definition for the vulnerability is CWE-189. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:
Integer overflow in the sg_start_req function in drivers/scsi/sg.c in the Linux kernel 2.6.x through 4.x before 4.1 allows local users to cause a denial of service or possibly have unspecified other impact via a large iov_count value in a write request.
The weakness was presented 08/01/2015 by Ben Hutchings as confirmed mailinglist post (oss-sec). The advisory is shared at seclists.org. This vulnerability is known as CVE-2015-5707 since 08/02/2015. The exploitation appears to be easy. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.
The vulnerability scanner Nessus provides a plugin with the ID 85281 (Debian DSA-3329-1 : linux - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 175492 (Debian Security Update for linux (DSA 3329-1)).
Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. A possible mitigation has been published 6 days after the disclosure of the vulnerability. The vulnerability will be addressed with the following lines of code:
if (unlikely(iov_count > MAX_UIOVEC)) return -EINVAL;
The vulnerability is also documented in the databases at X-Force (105237) and Tenable (85281). See 76062, 76352, 76831 and 76848 for similar entries.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
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VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.9VulDB Meta Temp Score: 5.2
VulDB Base Score: 5.9
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
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Exploiting
Class: Numeric errorCWE: CWE-189
CAPEC: 🔍
ATT&CK: 🔍
Local: Yes
Remote: No
Availability: 🔍
Status: Unproven
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Current Price Estimation: 🔍
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Nessus ID: 85281
Nessus Name: Debian DSA-3329-1 : linux - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 703329
OpenVAS Name: Debian Security Advisory DSA 3329-1 (linux - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
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Countermeasures
Recommended: PatchStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
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Patch: git.kernel.org
Timeline
08/01/2015 🔍08/01/2015 🔍
08/01/2015 🔍
08/02/2015 🔍
08/03/2015 🔍
08/07/2015 🔍
08/10/2015 🔍
09/09/2015 🔍
10/19/2015 🔍
10/31/2015 🔍
06/07/2022 🔍
Sources
Vendor: kernel.orgAdvisory: USN-2733-1
Researcher: Ben Hutchings
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2015-5707 (🔍)
OVAL: 🔍
X-Force: 105237 - Linux Kernel SCSI generic driver integer overflow
SecurityTracker: 1033521
Vulnerability Center: 54073 - Linux Kernel 2.6.x through 4.x before 4.1 Local DoS or Other Unspecified Vulnerability, Medium
SecurityFocus: 76145 - Linux Kernel '/scsi/sg.c' Integer Overflow Vulnerability
See also: 🔍
Entry
Created: 08/03/2015 13:21Updated: 06/07/2022 09:49
Changes: 08/03/2015 13:21 (80), 09/21/2018 10:18 (11), 06/07/2022 09:49 (3)
Complete: 🔍
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