LookupCol.c in X.Org X through X11R7.7 and libX11 before 1.7.1 might allow remote attackers to execute arbitrary code. The libX11 XLookupColor request...
Description d'origine
La description telle que publiée par la source (souvent en anglais).
LookupCol.c in X.Org X through X11R7.7 and libX11 before 1.7.1 might allow remote attackers to execute arbitrary code. The libX11 XLookupColor request (intended for server-side color lookup) contains a flaw allowing a client to send color-name requests with a name longer than the maximum size allowed by the protocol (and also longer than the maximum packet size for normal-sized packets). The user-controlled data exceeding the maximum size is then interpreted by the server as additional X protocol requests and executed, e.g., to disable X server authorization completely. For example, if the victim encounters malicious terminal control sequences for color codes, then the attacker may be able to take full control of the running graphical session.
État des correctifs par distribution
Paquets corrigés publiés par chaque distribution pour cette CVE
- Alpine Linux ALPINE-CVE-2021-31535 libx11 Corrigé dans: 1.6.12-r1
- BellSoft Alpaquita BELL-CVE-2021-31535
- Debian DEBIAN-CVE-2021-31535 libx11 Corrigé dans: 2:1.7.1-1
Références
- advisory seclists.org
- advisory openwall.com
- advisory gitlab.freedesktop.org
- advisory lists.debian.org
- advisory lists.freedesktop.org
- advisory lists.x.org
- advisory security.gentoo.org
- advisory security.netapp.com
- advisory debian.org
- advisory openwall.com
- advisory openwall.com
- report packetstormsecurity.com
- report unparalleled.eu
- report unparalleled.eu
- web lists.apache.org
- web lists.apache.org
- web lists.apache.org
- web lists.apache.org
- web lists.fedoraproject.org