X.org libXrender 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, which was classified as critical, has been found in X.org libXrender. Impacted is an unknown function. The manipulation leads to out-of-bounds write. This vulnerability is documented as CVE-2016-7950. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in X.org libXrender (affected version unknown) and classified as very critical. This issue affects an unknown functionality. 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. The summary by CVE is:

The XRenderQueryFilters function in X.org libXrender before 0.9.10 allows remote X servers to trigger out-of-bounds write operations via vectors involving filter name lengths.

The weakness was released 10/05/2016 by Tobias Stoeckmann with OpenBSD (Website). It is possible to read the advisory at openwall.com. The public release was coordinated with X.org. The identification of this vulnerability is CVE-2016-7950 since 09/09/2016. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/22/2022).

The vulnerability scanner Nessus provides a plugin with the ID 95804 (SUSE SLES11 Security Update : xorg-x11-libXrender (SUSE-SU-2016:3115-1)), 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 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 (95804), SecurityFocus (BID 93369†) and SecurityTracker (ID 1036945†). Entries connected to this vulnerability are available at VDB-92463, VDB-92464, VDB-92465 and VDB-92466. Be aware that VulDB is the high quality 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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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 95804
Nessus Name: SUSE SLES11 Security Update : xorg-x11-libXrender (SUSE-SU-2016:3115-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802894
OpenVAS Name: Fedora Update for libXrender FEDORA-2016-8877cf648b
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 🔍
12/14/2016 +1 days 🔍
09/22/2022 +2108 days 🔍

Sourcesinfo

Vendor: x.org

Advisory: FEDORA-2016-8877cf648b
Researcher: Tobias Stoeckmann
Organization: OpenBSD
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2016-7950 (🔍)
GCVE (CVE): GCVE-0-2016-7950
GCVE (VulDB): GCVE-100-92471
SecurityFocus: 93369 - X.Org libXrender CVE-2016-7950 Out of Bounds Write Denial of Service Vulnerability
SecurityTracker: 1036945

See also: 🔍

Entryinfo

Created: 10/06/2016 21:12
Updated: 09/22/2022 14:43
Changes: 10/06/2016 21:12 (70), 05/03/2019 23:16 (12), 09/22/2022 14:43 (4)
Complete: 🔍
Cache ID: 216::103

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