CVE-2017-2624
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.9epss 0.7%
exploitation probability
0.7%top 49% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
Affected products
Xorg · xorg-x11-serverReferences
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2624https://gitlab.freedesktop.org/xorg/xserver/commit/d7ac755f0b618eb1259d93c8a16ec6e39a18627chttps://lists.debian.org/debian-lts-announce/2017/11/msg00032.htmlhttps://security.gentoo.org/glsa/201704-03https://security.gentoo.org/glsa/201710-30https://www.x41-dsec.de/lab/advisories/x41-2017-001-xorg/http://www.securityfocus.com/bid/96480http://www.securitytracker.com/id/1037919