CVE - CVE-2017-2624

CVE-ID
CVE-2017-2624	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
It was found that xorg-x11-server before 1.19.0 including uses memcmp() to check the received MIT cookie against a series of valid cookies. If the cookie is correct, it is allowed to attach to the Xorg session. Since most memcmp() implementations return after an invalid byte is seen, this causes a time difference between a valid and invalid byte, which could allow an efficient brute force attack.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MLIST:[debian-lts-announce] 20171122 [SECURITY] [DLA 1186-1] xorg-server security update URL:https://lists.debian.org/debian-lts-announce/2017/11/msg00032.html MISC:https://www.x41-dsec.de/lab/advisories/x41-2017-001-xorg/ CONFIRM:https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2624 CONFIRM:https://gitlab.freedesktop.org/xorg/xserver/commit/d7ac755f0b618eb1259d93c8a16ec6e39a18627c GENTOO:GLSA-201704-03 URL:https://security.gentoo.org/glsa/201704-03 GENTOO:GLSA-201710-30 URL:https://security.gentoo.org/glsa/201710-30 BID:96480 URL:http://www.securityfocus.com/bid/96480 SECTRACK:1037919 URL:http://www.securitytracker.com/id/1037919
Assigning CNA
Red Hat, Inc.
Date Entry Created
20161201	Disclaimer: The entry creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20161201)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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