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CVE-2017-13721

Date: October 9, 2017

In X.Org Server (aka xserver and xorg-server) before 1.19.4, an attacker authenticated to an X server with the X shared memory extension enabled can cause aborts of the X server or replace shared memory segments of other X clients in the same session.

Language: C

Severity Score

Related Resources (11)

http://www.openwall.com/lists/oss-security/2017/10/04/10
https://security.gentoo.org/glsa/201710-30
http://www.securityfocus.com/bid/101238
https://lists.x.org/archives/xorg-announce/2017-October/002808.html
https://security.alpinelinux.org/vuln/CVE-2017-13721
https://nvd.nist.gov/vuln/detail/CVE-2017-13721
https://access.redhat.com/security/cve/CVE-2017-13721
https://security-tracker.debian.org/tracker/CVE-2017-13721
http://www.debian.org/security/2017/dsa-4000
https://cgit.freedesktop.org/xorg/xserver/commit/?id=b95f25af141d33a65f6f821ea9c003f66a01e1f1
https://www.mend.io/vulnerability-database/CVE-2017-13721

Severity Score

Weakness Type (CWE)

Permissions, Privileges, and Access Control

CWE-264

Improper Privilege Management

CWE-269

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): HIGH
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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