Xen up to 4.10.x QEMU resource management

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Xen up to 4.10.x. This vulnerability affects unknown code of the component QEMU. The manipulation leads to resource management. This vulnerability was named CVE-2018-10981. Local access is required to approach this attack. There is no exploit available. It is recommended to upgrade the affected component. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Detailsinfo

A vulnerability classified as problematic has been found in Xen up to 4.10.x (Virtualization Software). This affects an unknown function of the component QEMU. 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 summary by CVE is:

An issue was discovered in Xen through 4.10.x allowing x86 HVM guest OS users to cause a denial of service (host OS infinite loop) in situations where a QEMU device model attempts to make invalid transitions between states of a request.

The bug was discovered 05/08/2018. The weakness was released 05/10/2018 by Jan Beulich (oss-sec). The advisory is shared at openwall.com. This vulnerability is uniquely identified as CVE-2018-10981 since 05/10/2018. The exploitability is told to be easy. An attack has to be approached locally. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 110309 (openSUSE Security Update : xen (openSUSE-2018-547) (Spectre)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 390158 (Oracle VM Server for x86 Security Update for xen (OVMSA-2018-0272)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 4 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (110309) and SecurityFocus (BID 104149†). Entries connected to this vulnerability are available at VDB-113918, VDB-113919, VDB-117441 and VDB-117508. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 5.1

VulDB Base Score: 3.8
VulDB Temp Score: 3.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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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: 🔍

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 110309
Nessus Name: openSUSE Security Update : xen (openSUSE-2018-547) (Spectre)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 54608
OpenVAS Name: Fedora Update for xen FEDORA-2018-98684f429b
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

05/08/2018 🔍
05/08/2018 +0 days 🔍
05/10/2018 +1 days 🔍
05/10/2018 +0 days 🔍
05/10/2018 +0 days 🔍
05/11/2018 +1 days 🔍
06/01/2018 +21 days 🔍
06/04/2018 +3 days 🔍
03/11/2023 +1741 days 🔍

Sourcesinfo

Advisory: DLA 1383-1
Researcher: Jan Beulich
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-10981 (🔍)
GCVE (CVE): GCVE-0-2018-10981
GCVE (VulDB): GCVE-100-117621

OVAL: 🔍

SecurityFocus: 104149 - Xen CVE-2018-10981 Local Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 05/11/2018 11:08 AM
Updated: 03/11/2023 05:28 PM
Changes: 05/11/2018 11:08 AM (75), 02/04/2020 02:59 PM (7), 03/11/2023 05:28 PM (4)
Complete: 🔍
Cache ID: 18:7D6:40

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