CVE-2020-14347

A flaw was found in the way xserver memory was not properly initialized. This could leak parts of server memory to the X client. In cases where Xorg server runs with elevated privileges, this could result in possible ASLR bypass. Xorg-server before version 1.20.9 is vulnerable.

CVSS v3.0 5.5 MEDIUM
CVSS v2.0 2.1 LOW

5.5^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

2.1^/10

CVSS v2.0 : LOW

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

Exploitability : 3.9 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14347	Issue Tracking Third Party Advisory
https://www.openwall.com/lists/oss-security/2020/07/31/2	Mailing List Third Party Advisory
https://lists.x.org/archives/xorg-announce/2020-July/003051.html	Mailing List Patch Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00066.html	Broken Link
https://lists.debian.org/debian-lts-announce/2020/08/msg00057.html	Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00075.html	Broken Link
https://www.debian.org/security/2020/dsa-4758	Third Party Advisory
https://usn.ubuntu.com/4488-1/	Third Party Advisory
https://usn.ubuntu.com/4488-2/	Third Party Advisory
https://security.gentoo.org/glsa/202012-01	Third Party Advisory

Advertisement

Configurations

Configuration 1 (hide)

cpe:2.3:a:x.org:xorg-server:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:9.0:::::::*
	cpe:2.3:o:debian:debian_linux:10.0:::::::*

Configuration 3 (hide)

OR	cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:14.04::::esm:::
	cpe:2.3:o:canonical:ubuntu_linux:20.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:16.04::::esm:::

Information

Published : 2020-08-05 07:15

Updated : 2023-02-03 08:28

NVD link : CVE-2020-14347

Mitre link : CVE-2020-14347

JSON object : View

CWE

CWE-665

Improper Initialization

Advertisement

Products Affected

debian

debian_linux

canonical

ubuntu_linux

x.org

xorg-server

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14347", "name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14347", "tags": ["Issue Tracking", "Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "https://www.openwall.com/lists/oss-security/2020/07/31/2", "name": "https://www.openwall.com/lists/oss-security/2020/07/31/2", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://lists.x.org/archives/xorg-announce/2020-July/003051.html", "name": "https://lists.x.org/archives/xorg-announce/2020-July/003051.html", "tags": ["Mailing List", "Patch", "Vendor Advisory"], "refsource": "MISC"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00066.html", "name": "openSUSE-SU-2020:1279", "tags": ["Broken Link"], "refsource": "SUSE"}, {"url": "https://lists.debian.org/debian-lts-announce/2020/08/msg00057.html", "name": "[debian-lts-announce] 20200830 [SECURITY] [DLA 2359-1] xorg-server security update", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MLIST"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00075.html", "name": "openSUSE-SU-2020:1302", "tags": ["Broken Link"], "refsource": "SUSE"}, {"url": "https://www.debian.org/security/2020/dsa-4758", "name": "DSA-4758", "tags": ["Third Party Advisory"], "refsource": "DEBIAN"}, {"url": "https://usn.ubuntu.com/4488-1/", "name": "USN-4488-1", "tags": ["Third Party Advisory"], "refsource": "UBUNTU"}, {"url": "https://usn.ubuntu.com/4488-2/", "name": "USN-4488-2", "tags": ["Third Party Advisory"], "refsource": "UBUNTU"}, {"url": "https://security.gentoo.org/glsa/202012-01", "name": "GLSA-202012-01", "tags": ["Third Party Advisory"], "refsource": "GENTOO"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "A flaw was found in the way xserver memory was not properly initialized. This could leak parts of server memory to the X client. In cases where Xorg server runs with elevated privileges, this could result in possible ASLR bypass. Xorg-server before version 1.20.9 is vulnerable."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-665"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2020-14347", "ASSIGNER": "secalert@redhat.com"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 2.1, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "severity": "LOW", "acInsufInfo": false, "impactScore": 2.9, "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 1.8}}, "publishedDate": "2020-08-05T14:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:x.org:xorg-server:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "1.20.9"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2023-02-03T16:28Z"}