LibX11 Xinput module information disclosure
| libx11-xinput-information-disclosure (29956) |  Low Risk |
Description:
LibX11 could allow a local attacker to obtain sensitive information, caused by a file descriptor leak in the Xinput module. An attacker could send a specially-crafted URL request to the modules/im/ximcp/imLcIm.c module using an invalid XCOMPOSEFILE variable to view various files on the system. An attacker could use this information to launch further attacks against the affected system.
*CVSS:
| Base Score: | 2.5 |
| Access Vector: | Local |
| Access Complexity: | Low |
| Authentication: | Not Required |
| Confidentiality Impact: | Partial |
| Integrity Impact: | None |
| Availability Impact: | None |
| Temporal Score: | 2.2 |
| Exploitability: | High |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Obtain Information
Remedy:
Upgrade to the latest version of LibX11, available from the libX11 GIT Repository. See References.
References:
- Freedesktop libX11 GIT Repository: LibX11.
- freedesktop.org Bugzilla Bug 8699 : input method module leaks fd.
- BID-20845: X.Org X Window Server LibX11 Xinput File Descriptor Leak Vulnerability
- CVE-2006-5397: The Xinput module (modules/im/ximcp/imLcIm.c) in X.Org libX11 1.0.2 and 1.0.3 opens a file for reading twice using the same file descriptor, which causes a file descriptor leak that allows local users to read files specified by the XCOMPOSEFILE environment variable via the duplicate file descriptor.
- MDKSA-2006:199: Updated libx11 packages fix file descriptor leak vulnerability
- SA22642: libX11 XCOMPOSEFILE File Descriptor Leak
- VUPEN/ADV-2006-4289: LibX11 XCOMPOSEFILE File Descriptor Leak Information Disclosure Vulnerability
Platforms Affected:
- MandrakeSoft Mandrake Linux 2007 X86_64
- MandrakeSoft Mandrake Linux 2007
- X.Org LibX11 1.0.2
- X.Org LibX11 1.0.3
Reported:
Oct 30, 2006
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.