kritisch
CVE-2021-31535
libX11: missing request length checks
In der Trivy Database seit spätestens 24. Okt. 2026, 07:11 UTCWann der Eintrag vor diesem Build hinzukam, ist nicht erfasst.
Einstufung nach Quelle
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
Trivys eigenes Label ist CRITICAL. Kritisch laut NVD, Julia. Niedriger laut Red Hat (hoch), Amazon (hoch), AlmaLinux (mittel), Oracle (mittel), Rocky Linux (mittel), Ubuntu (mittel).
Beschreibung
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.
Betroffene Pakete und behobene Versionen
| Quelle | Paket | Behoben in |
|---|---|---|
| julia::Julia Ecosystem Security Advisories | Xorg_libX11_jll | 1.8.6+0 |
| alma 8 | libX11, libX11-common, libX11-devel und 1 weitere | 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 |
Alle 60 Einträge aus 41 Quellen zeigen
| Quelle | Paket | Behoben in |
|---|---|---|
| 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 | kein Fix angegeben |
| Red Hat | libX11-common | kein Fix angegeben |
| Red Hat | libX11-devel | kein Fix angegeben |
| 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 |
Referenzen
- 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
Alle 30 Referenzen
- 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