Fabrice Bellard QEMU PIT Emulation pit_ioport_read memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Fabrice Bellard QEMU. Affected is the function pit_ioport_read of the component PIT Emulation Handler. Performing a manipulation results in memory corruption. This vulnerability is reported as CVE-2015-3214. Moreover, an exploit is present. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability classified as problematic has been found in Fabrice Bellard QEMU (Virtualization Software) (affected version not known). This affects the function pit_ioport_read of the component PIT Emulation Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was disclosed 06/17/2015 with Google as not defined mailinglist post (oss-sec). It is possible to read the advisory at seclists.org. This vulnerability is uniquely identified as CVE-2015-3214 since 04/10/2015. Attacking locally is a requirement. No form of authentication is needed for exploitation. Technical details and a public exploit are known.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 85030 (CentOS 7 : qemu-kvm (CESA-2015:1507)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 168944 (SUSE Enterprise Linux Security update for qemu (SUSE-SU-2016:1560-1)).

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the databases at X-Force (103911), Tenable (85030), SecurityFocus (BID 75273†), SecurityTracker (ID 1032598†) and Vulnerability Center (SBV-51613†). The entries VDB-77069, VDB-81154 and VDB-81155 are pretty similar. 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: 5.9
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.9
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 85030
Nessus Name: CentOS 7 : qemu-kvm (CESA-2015:1507)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 703348
OpenVAS Name: Debian Security Advisory DSA 3348-1 (qemu - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: git.kernel.org

Timelineinfo

04/10/2015 🔍
06/17/2015 +68 days 🔍
06/17/2015 +0 days 🔍
06/17/2015 +0 days 🔍
06/17/2015 +0 days 🔍
06/18/2015 +1 days 🔍
07/28/2015 +40 days 🔍
08/31/2015 +34 days 🔍
12/21/2024 +3400 days 🔍

Sourcesinfo

Vendor: bellard.org

Advisory: RHSA-2015:1507
Organization: Google
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-3214 (🔍)
GCVE (CVE): GCVE-0-2015-3214
GCVE (VulDB): GCVE-100-75987

OVAL: 🔍

X-Force: 103911 - QEMU pit_ioport_read code execution
SecurityFocus: 75273 - QEMU 'pit_ioport_read()' Function Memory Corruption Vulnerability
SecurityTracker: 1032598 - QEMU i8254 PIT Emulation Bug Lets Local Users Gain Elevated Privileges
Vulnerability Center: 51613 - QEMU Remote Code Execution due to Out-of-Bounds Memory Access Flaw in pit_ioport_read(), Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 06/18/2015 10:36
Updated: 12/21/2024 18:09
Changes: 06/18/2015 10:36 (69), 08/03/2017 03:20 (11), 05/21/2022 10:14 (6), 05/21/2022 10:21 (1), 05/21/2022 10:27 (2), 12/21/2024 18:09 (26)
Complete: 🔍
Cache ID: 216::103

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