critique
CVE-2021-31535
libX11: missing request length checks
Dans la Trivy database depuis au moins le 24 oct. 2026, 07:11 UTCLa date d'entrée avant ce build n'est pas enregistrée.
Sévérité par source
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Julia9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Le label propre à Trivy est CRITICAL. Critique selon NVD, Julia. Plus basse selon Red Hat (élevée), Amazon (élevée), AlmaLinux (moyenne), Oracle (moyenne), Rocky Linux (moyenne), Ubuntu (moyenne).
Description
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.
Paquets affectés et versions corrigées
| Source | Paquet | Corrigé en |
|---|---|---|
| julia::Julia Ecosystem Security Advisories | Xorg_libX11_jll | 1.8.6+0 |
| alma 8 | libX11, libX11-common, libX11-devel et 1 autres | 1.6.8-5.el8 |
| alpine 3.10 | libx11 | 1.6.12-r1 |
| alpine 3.11 | libx11 | 1.6.12-r1 |
| alpine 3.12 | libx11 | 1.6.12-r1 |
| alpine 3.13 | libx11 | 1.7.1-r0 |
| alpine 3.14 | libx11 | 1.7.1-r0 |
| alpine 3.15 | libx11 | 1.7.1-r0 |
| alpine 3.16 | libx11 | 1.7.1-r0 |
| alpine 3.17 | libx11 | 1.7.1-r0 |
| alpine 3.18 | libx11 | 1.7.1-r0 |
| alpine 3.19 | libx11 | 1.7.1-r0 |
Afficher les 60 entrées de 41 sources
| Source | Paquet | Corrigé en |
|---|---|---|
| julia::Julia Ecosystem Security Advisories | Xorg_libX11_jll | 1.8.6+0 |
| alma 8 | libX11 | 1.6.8-5.el8 |
| alma 8 | libX11-common | 1.6.8-5.el8 |
| alma 8 | libX11-devel | 1.6.8-5.el8 |
| alma 8 | libX11-xcb | 1.6.8-5.el8 |
| alpine 3.10 | libx11 | 1.6.12-r1 |
| alpine 3.11 | libx11 | 1.6.12-r1 |
| alpine 3.12 | libx11 | 1.6.12-r1 |
| alpine 3.13 | libx11 | 1.7.1-r0 |
| alpine 3.14 | libx11 | 1.7.1-r0 |
| alpine 3.15 | libx11 | 1.7.1-r0 |
| alpine 3.16 | libx11 | 1.7.1-r0 |
| alpine 3.17 | libx11 | 1.7.1-r0 |
| alpine 3.18 | libx11 | 1.7.1-r0 |
| alpine 3.19 | libx11 | 1.7.1-r0 |
| alpine 3.20 | libx11 | 1.7.1-r0 |
| alpine 3.21 | libx11 | 1.7.1-r0 |
| alpine 3.22 | libx11 | 1.7.1-r0 |
| alpine 3.23 | libx11 | 1.7.1-r0 |
| alpine 3.24 | libx11 | 1.7.1-r0 |
| alpine edge | libx11 | 1.7.1-r0 |
| amazon linux 1 | libX11 | 1.6.0-2.2.14.amzn1 |
| amazon linux 1 | libX11-common | 1.6.0-2.2.14.amzn1 |
| amazon linux 1 | libX11-debuginfo | 1.6.0-2.2.14.amzn1 |
| amazon linux 1 | libX11-devel | 1.6.0-2.2.14.amzn1 |
| amazon linux 2 | libX11 | 1.6.7-3.amzn2.0.2 |
| amazon linux 2 | libX11-common | 1.6.7-3.amzn2.0.2 |
| amazon linux 2 | libX11-debuginfo | 1.6.7-3.amzn2.0.2 |
| amazon linux 2 | libX11-devel | 1.6.7-3.amzn2.0.2 |
| debian 10 | libx11 | 2:1.6.7-1+deb10u2 |
| debian 11 | libx11 | 2:1.7.1-1 |
| debian 12 | libx11 | 2:1.7.1-1 |
| debian 13 | libx11 | 2:1.7.1-1 |
| debian 14 | libx11 | 2:1.7.1-1 |
| debian 9 | libx11 | 2:1.6.4-3+deb9u4 |
| echo | libx11 | 2:1.7.1-1 |
| Oracle Linux 7 | libX11 | 1.6.7-4.el7_9 |
| Oracle Linux 7 | libX11-common | 1.6.7-4.el7_9 |
| Oracle Linux 7 | libX11-devel | 1.6.7-4.el7_9 |
| Oracle Linux 8 | libX11 | 1.6.8-5.el8 |
| Oracle Linux 8 | libX11-common | 1.6.8-5.el8 |
| Oracle Linux 8 | libX11-devel | 1.6.8-5.el8 |
| Oracle Linux 8 | libX11-xcb | 1.6.8-5.el8 |
| Red Hat | libX11 | pas de correctif indiqué |
| Red Hat | libX11-common | pas de correctif indiqué |
| Red Hat | libX11-devel | pas de correctif indiqué |
| rocky 8 | libX11 | 1.6.8-5.el8 |
| rocky 8 | libX11-common | 1.6.8-5.el8 |
| rocky 8 | libX11-devel | 1.6.8-5.el8 |
| rocky 8 | libX11-xcb | 1.6.8-5.el8 |
| ubuntu 14.04-ESM | libx11 | 2:1.6.2-1ubuntu2.1+esm2 |
| ubuntu 16.04-ESM | libx11 | 2:1.6.3-1ubuntu2.2+esm1 |
| ubuntu 18.04 | libx11 | 2:1.6.4-3ubuntu0.4 |
| ubuntu 18.04-ESM | libx11 | 2:1.6.4-3ubuntu0.4 |
| ubuntu 20.04 | libx11 | 2:1.6.9-2ubuntu1.2 |
| ubuntu 20.04-ESM | libx11 | 2:1.6.9-2ubuntu1.2 |
| ubuntu 20.10 | libx11 | 2:1.6.12-1ubuntu0.1 |
| ubuntu 21.04 | libx11 | 2:1.7.0-2ubuntu0.1 |
| ubuntu 21.10 | libx11 | 1.7.0-2ubuntu1 |
| ubuntu 22.04 | libx11 | 1.7.0-2ubuntu1 |
Références
- http://packetstormsecurity.com/files/162737/libX11-Insufficient-Length-Check-Injection.html
- http://seclists.org/fulldisclosure/2021/May/52
- http://www.openwall.com/lists/oss-security/2021/05/18/2
- https://access.redhat.com/security/cve/CVE-2021-31535
- https://bugzilla.redhat.com/show_bug.cgi?id=1961822
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31535
- https://errata.almalinux.org/8/ALSA-2021-4326.html
- https://errata.rockylinux.org/RLSA-2021:4326
Les 30 références
- https://gitlab.freedesktop.org/xorg/lib/libx11/-/commit/8d2e02ae650f00c4a53deb625211a0527126c605
- https://linux.oracle.com/cve/CVE-2021-31535.html
- https://linux.oracle.com/errata/ELSA-2021-4326.html
- https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc@%3Cdev.kafka.apache.org%3E
- https://lists.apache.org/thread.html/r61db8e7dcb56dc000a5387a88f7a473bacec5ee01b9ff3f55308aacc@%3Cusers.kafka.apache.org%3E
- https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7@%3Cdev.kafka.apache.org%3E
- https://lists.apache.org/thread.html/rbf4ce74b0d1fa9810dec50ba3ace0caeea677af7c27a97111c06ccb7@%3Cusers.kafka.apache.org%3E
- https://lists.debian.org/debian-lts-announce/2021/05/msg00021.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TEOT4RLB76RVPJQKGGTIKTBIOLHX2NR6/
- https://lists.freedesktop.org/archives/xorg/
- https://lists.x.org/archives/xorg-announce/2021-May/003088.html
- https://nvd.nist.gov/vuln/detail/CVE-2021-31535
- https://security.gentoo.org/glsa/202105-16
- https://security.netapp.com/advisory/ntap-20210813-0001/
- https://ubuntu.com/security/notices/USN-4966-1
- https://ubuntu.com/security/notices/USN-4966-2
- https://unparalleled.eu/blog/2021/20210518-using-xterm-to-navigate-the-huge-color-space/
- https://unparalleled.eu/publications/2021/advisory-unpar-2021-1.txt
- https://www.cve.org/CVERecord?id=CVE-2021-31535
- https://www.debian.org/security/2021/dsa-4920
- https://www.openwall.com/lists/oss-security/2021/05/18/2
- https://www.openwall.com/lists/oss-security/2021/05/18/3