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CVE-2017-2624

N/A

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.1N/A

Publicado7/27/2018

Ultima modificacao8/29/2025

Fontenvd

Avistamentos honeypot0

Produtos afetados

debian:debian_linuxx.org:x_server

Fraquezas (CWE)

CWE-385CWE-200

Referencias

http://www.securityfocus.com/bid/96480(secalert@redhat.com)

http://www.securitytracker.com/id/1037919(secalert@redhat.com)

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2624(secalert@redhat.com)

https://gitlab.freedesktop.org/xorg/xserver/commit/d7ac755f0b618eb1259d93c8a16ec6e39a18627c(secalert@redhat.com)

https://lists.debian.org/debian-lts-announce/2017/11/msg00032.html(secalert@redhat.com)

https://security.gentoo.org/glsa/201704-03(secalert@redhat.com)

https://security.gentoo.org/glsa/201710-30(secalert@redhat.com)

https://www.x41-dsec.de/lab/advisories/x41-2017-001-xorg/(secalert@redhat.com)

http://www.securityfocus.com/bid/96480(af854a3a-2127-422b-91ae-364da2661108)

http://www.securitytracker.com/id/1037919(af854a3a-2127-422b-91ae-364da2661108)

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2624(af854a3a-2127-422b-91ae-364da2661108)

https://gitlab.freedesktop.org/xorg/xserver/commit/d7ac755f0b618eb1259d93c8a16ec6e39a18627c(af854a3a-2127-422b-91ae-364da2661108)

https://lists.debian.org/debian-lts-announce/2017/11/msg00032.html(af854a3a-2127-422b-91ae-364da2661108)

https://security.gentoo.org/glsa/201704-03(af854a3a-2127-422b-91ae-364da2661108)

https://security.gentoo.org/glsa/201710-30(af854a3a-2127-422b-91ae-364da2661108)

https://www.x41-dsec.de/lab/advisories/x41-2017-001-xorg/(af854a3a-2127-422b-91ae-364da2661108)

Correlacoes IOC

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