QEMU up to 3.1.0 Hypervisor hw/ppc/spapr.c data processing

CVSS Meta Temp Score
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CTI Interest Score
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3.3$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in QEMU up to 3.1.0. Impacted is an unknown function of the file hw/ppc/spapr.c of the component Hypervisor. The manipulation leads to data processing. This vulnerability is documented as CVE-2019-8934. The attack needs to be performed locally. There is not any exploit available.

Detailsinfo

A vulnerability was found in QEMU up to 3.1.0 (Virtualization Software) and classified as problematic. This issue affects some unknown functionality of the file hw/ppc/spapr.c of the component Hypervisor. The manipulation with an unknown input leads to a data processing vulnerability. Using CWE to declare the problem leads to CWE-19. Impacted is confidentiality. The summary by CVE is:

hw/ppc/spapr.c in QEMU through 3.1.0 allows Information Exposure because the hypervisor shares the /proc/device-tree/system-id and /proc/device-tree/model system attributes with a guest.

The bug was discovered 02/21/2019. The weakness was released 03/21/2019 by Michael Hanselmann (Website). It is possible to read the advisory at lists.opensuse.org. The identification of this vulnerability is CVE-2019-8934 since 02/19/2019. The exploitation is known to be easy. Attacking locally is a requirement. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 28 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 209571 (Oracle Linux 8 : virt:kvm_utils3 (ELSA-2024-12792)), which helps to determine the existence of the flaw in a target environment. The commercial vulnerability scanner Qualys is able to test this issue with plugin 157973 (Oracle Enterprise Linux Security Update for qemu (ELSA-2019-4640)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (209571) and SecurityFocus (BID 107059†). Entries connected to this vulnerability are available at VDB-131908, VDB-132018, VDB-133880 and VDB-135752. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 3.3
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Data processing
CWE: CWE-19
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 209571
Nessus Name: Oracle Linux 8 : virt:kvm_utils3 (ELSA-2024-12792)

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/18/2019 🔍
02/19/2019 +1 days 🔍
02/21/2019 +2 days 🔍
03/21/2019 +28 days 🔍
03/22/2019 +1 days 🔍
10/26/2024 +2045 days 🔍

Sourcesinfo

Product: qemu.org

Advisory: lists.opensuse.org
Researcher: Michael Hanselmann
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2019-8934 (🔍)
GCVE (CVE): GCVE-0-2019-8934
GCVE (VulDB): GCVE-100-132071
SecurityFocus: 107059 - QEMU CVE-2019-3812 Out-Of-Bounds Read Local Information Disclosure Vulnerability

See also: 🔍

Entryinfo

Created: 03/22/2019 09:06
Updated: 10/26/2024 22:07
Changes: 03/22/2019 09:06 (60), 05/19/2020 07:58 (6), 10/26/2024 22:07 (17)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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