CVE-2016-7943

The XListFonts function in X.org libX11 before 1.6.4 might allow remote X servers to gain privileges via vectors involving length fields, which trigger out-of-bounds write operations.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
http://www.securityfocus.com/bid/93362	Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1036945	Third Party Advisory VDB Entry
https://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=8c29f1607a31dac0911e45a0dd3d74173822b3c9	Issue Tracking Patch
http://www.openwall.com/lists/oss-security/2016/10/04/2	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/04/4	Mailing List Patch Third Party Advisory
https://lists.x.org/archives/xorg-announce/2016-October/002720.html	Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GMCVDXMFPXR7QGMKDG22WPPJCXH2X3L7/	Third Party Advisory
https://security.gentoo.org/glsa/201704-03
https://usn.ubuntu.com/3758-2/
https://usn.ubuntu.com/3758-1/

Advertisement

Configurations

Configuration 1 (hide)

cpe:2.3:o:fedoraproject:fedora:25:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:a:x.org:libx11:*:*:*:*:*:*:*:*

Information

Published : 2016-12-13 12:59

Updated : 2018-09-13 03:29

NVD link : CVE-2016-7943

Mitre link : CVE-2016-7943

JSON object : View

CWE

CWE-787

Out-of-bounds Write

Advertisement

Products Affected

fedoraproject

fedora

x.org

libx11

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "http://www.securityfocus.com/bid/93362", "name": "93362", "tags": ["Third Party Advisory", "VDB Entry"], "refsource": "BID"}, {"url": "http://www.securitytracker.com/id/1036945", "name": "1036945", "tags": ["Third Party Advisory", "VDB Entry"], "refsource": "SECTRACK"}, {"url": "https://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=8c29f1607a31dac0911e45a0dd3d74173822b3c9", "name": "https://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=8c29f1607a31dac0911e45a0dd3d74173822b3c9", "tags": ["Issue Tracking", "Patch"], "refsource": "CONFIRM"}, {"url": "http://www.openwall.com/lists/oss-security/2016/10/04/2", "name": "[oss-security] 20161004 X.Org security advisory: Protocol handling issues in X Window System client libraries", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MLIST"}, {"url": "http://www.openwall.com/lists/oss-security/2016/10/04/4", "name": "[oss-security] 20161004 Re: X.Org security advisory: Protocol handling issues in X Window System client libraries", "tags": ["Mailing List", "Patch", "Third Party Advisory"], "refsource": "MLIST"}, {"url": "https://lists.x.org/archives/xorg-announce/2016-October/002720.html", "name": "[xorg-announce] 20161004 X.Org security advisory: Protocol handling issues in X Window System client libraries", "tags": ["Vendor Advisory"], "refsource": "MLIST"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GMCVDXMFPXR7QGMKDG22WPPJCXH2X3L7/", "name": "FEDORA-2016-0df69ab477", "tags": ["Third Party Advisory"], "refsource": "FEDORA"}, {"url": "https://security.gentoo.org/glsa/201704-03", "name": "GLSA-201704-03", "tags": [], "refsource": "GENTOO"}, {"url": "https://usn.ubuntu.com/3758-2/", "name": "USN-3758-2", "tags": [], "refsource": "UBUNTU"}, {"url": "https://usn.ubuntu.com/3758-1/", "name": "USN-3758-1", "tags": [], "refsource": "UBUNTU"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "The XListFonts function in X.org libX11 before 1.6.4 might allow remote X servers to gain privileges via vectors involving length fields, which trigger out-of-bounds write operations."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-787"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2016-7943", "ASSIGNER": "security@suse.com"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "severity": "HIGH", "impactScore": 6.4, "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}}, "publishedDate": "2016-12-13T20:59Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:25:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:x.org:libx11:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "1.6.3"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2018-09-13T10:29Z"}