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Vulnerability record · CVE-2011-0465 · published 8 April 2011

CVE-2011-0465: Matthias hopf xrdb improper input validation vulnerability

MMatthias Hopf · Xrdb

xrdb.c in xrdb before 1.0.9 in X.Org X11R7.6 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters in a hostname obtained from a (1) DHCP or (2) XDMCP message.

9.3 CVSS 2.0 High EPSS 5.8% · top 7.2% CWE-20 · Improper input validation
9.3CVSS 2.0 base score
5.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
58References
16 Jun 2026Last modified by NVD

Description

xrdb.c in xrdb before 1.0.9 in X.Org X11R7.6 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters in a hostname obtained from a (1) DHCP or (2) XDMCP message.

AV:N/AC:M/Au:N/C:C/I:C/A:C

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://cgit.freedesktop.org/xorg/app/xrdb/commit/?id=1027d5df07398c1507fb1fe3a9981aa6b4bc3a56 Patch
http://lists.fedoraproject.org/pipermail/package-announce/2011-April/057928.html
http://lists.freedesktop.org/archives/xorg-announce/2011-April/001635.html Patch
http://lists.freedesktop.org/archives/xorg-announce/2011-April/001636.html Patch
http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00002.html
http://secunia.com/advisories/44010
http://secunia.com/advisories/44012
http://secunia.com/advisories/44040 Vendor Advisory
http://secunia.com/advisories/44082
http://secunia.com/advisories/44122
http://secunia.com/advisories/44123
http://secunia.com/advisories/44193
http://slackware.com/security/viewer.php?l=slackware-security&y=2011&m=slackware-security.465748
http://www.debian.org/security/2011/dsa-2213
http://www.mandriva.com/security/advisories?name=MDVSA-2011:076
http://www.redhat.com/support/errata/RHSA-2011-0432.html
http://www.redhat.com/support/errata/RHSA-2011-0433.html
http://www.securityfocus.com/bid/47189
http://www.securitytracker.com/id?1025317
http://www.ubuntu.com/usn/USN-1107-1
http://www.vupen.com/english/advisories/2011/0880 Vendor Advisory
http://www.vupen.com/english/advisories/2011/0889
http://www.vupen.com/english/advisories/2011/0906
http://www.vupen.com/english/advisories/2011/0929
http://www.vupen.com/english/advisories/2011/0966
http://www.vupen.com/english/advisories/2011/0975
https://bugzilla.redhat.com/show_bug.cgi?id=680196 Patch
https://exchange.xforce.ibmcloud.com/vulnerabilities/66585
https://lwn.net/Articles/437150/
http://cgit.freedesktop.org/xorg/app/xrdb/commit/?id=1027d5df07398c1507fb1fe3a9981aa6b4bc3a56 Patch
http://lists.fedoraproject.org/pipermail/package-announce/2011-April/057928.html
http://lists.freedesktop.org/archives/xorg-announce/2011-April/001635.html Patch
http://lists.freedesktop.org/archives/xorg-announce/2011-April/001636.html Patch
http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00002.html
http://secunia.com/advisories/44010
http://secunia.com/advisories/44012
http://secunia.com/advisories/44040 Vendor Advisory
http://secunia.com/advisories/44082
http://secunia.com/advisories/44122
http://secunia.com/advisories/44123

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2011-0465), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.