X.org libXrandr out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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9.6$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in X.org libXrandr. This affects an unknown part. Such manipulation leads to out-of-bounds write. This vulnerability is listed as CVE-2016-7947. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in X.org libXrandr (unknown version). Affected by this issue is an unknown code block. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Multiple integer overflows in X.org libXrandr before 1.5.1 allow remote X servers to trigger out-of-bounds write operations via a crafted response.

The weakness was presented 10/05/2016 by Tobias Stoeckmann with OpenBSD (Website). The advisory is shared for download at openwall.com. The public release was coordinated in cooperation with the vendor. This vulnerability is handled as CVE-2016-7947 since 09/09/2016. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 09/22/2022).

The vulnerability scanner Nessus provides a plugin with the ID 900049 , 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 169243 (SUSE Enterprise Linux Security Update for X Window System client libraries (SUSE-SU-2016:2505-1)).

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

The vulnerability is also documented in the databases at Tenable (900049), SecurityFocus (BID 93365†) and SecurityTracker (ID 1036945†). See VDB-92463, VDB-92464, VDB-92465 and VDB-92466 for similar entries. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.6

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 900049
Nessus File: 🔍

OpenVAS ID: 865938
OpenVAS Name: Fedora Update for libXrandr FEDORA-2016-a06c8cc941
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: 🔍

Patch: cgit.freedesktop.org

Timelineinfo

09/09/2016 🔍
10/04/2016 +25 days 🔍
10/05/2016 +1 days 🔍
10/05/2016 +0 days 🔍
10/05/2016 +0 days 🔍
10/06/2016 +1 days 🔍
12/13/2016 +68 days 🔍
09/22/2022 +2109 days 🔍

Sourcesinfo

Vendor: x.org

Advisory: FEDORA-2016-83040426d6
Researcher: Tobias Stoeckmann
Organization: OpenBSD
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2016-7947 (🔍)
GCVE (CVE): GCVE-0-2016-7947
GCVE (VulDB): GCVE-100-92468
SecurityFocus: 93365 - X.Org libXrandr CVE-2016-7947 Multiple Integer Overflow Vulnerabilities
SecurityTracker: 1036945

See also: 🔍

Entryinfo

Created: 10/06/2016 21:12
Updated: 09/22/2022 14:38
Changes: 10/06/2016 21:12 (65), 05/03/2019 22:51 (12), 09/22/2022 14:38 (4)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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