Bug 724005 (CVE-2011-2709)
Summary: | CVE-2011-2709 libgssapi, libgssglue: Ability to load untrusted configuration file, when loading GSS mechanisms and their definitions during initialization | ||
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Product: | [Other] Security Response | Reporter: | Jan Lieskovsky <jlieskov> |
Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
Status: | CLOSED WONTFIX | QA Contact: | |
Severity: | low | Docs Contact: | |
Priority: | low | ||
Version: | unspecified | CC: | steved |
Target Milestone: | --- | Keywords: | Security |
Target Release: | --- | ||
Hardware: | All | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | Bug Fix | |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2015-08-22 16:07:22 UTC | Type: | --- |
Regression: | --- | Mount Type: | --- |
Documentation: | --- | CRM: | |
Verified Versions: | Category: | --- | |
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
Cloudforms Team: | --- | Target Upstream Version: | |
Embargoed: | |||
Bug Depends On: | 724008, 724009 | ||
Bug Blocks: | 724019 |
Description
Jan Lieskovsky
2011-07-21 17:32:26 UTC
This issue affects the versions of the libgssapi package, as shipped with Red Hat Enterprise Linux 4 and 5. -- This issue affects the version of the libgssglue package, as shipped with Red Hat Enterprise Linux 6. -- This issue affects the versions of the libgssapi package, as shipped with Fedora release of 14 and 15. This issue affects the versions of the libgssglue package, as shipped with Fedora release of 14 and 15. Please schedule an update. Created libgssglue tracking bugs for this issue Affects: fedora-all [bug 724009] Created libgssapi tracking bugs for this issue Affects: fedora-all [bug 724008] Request for CVE and plaintext version of the patches: [7] http://www.openwall.com/lists/oss-security/2011/07/21/3 The CVE identifier of CVE-2011-2709 has been assigned to this issue: [8] http://www.openwall.com/lists/oss-security/2011/07/22/4 Patch that was used by SUSE: http://thread.gmane.org/gmane.comp.security.oss.general/5544/focus=5712 It checks for uid != euid to handle setuid mount.nfs use case. Adding gid != egid check to cover possible setgid use case (even though none seem to be known at the moment) seems like a reasonable extension to SUSE's fix. Upstream fixed this in libgssglue-0.4: http://www.citi.umich.edu/projects/nfsv4/linux/libgssglue/libgssglue-0.4.tar.gz Although the library is affected by this vulnerability, we are not aware of an application shipping as part of RHEL that would offer a suitable attack vector to actually exploit this vulnerability in a way that would cross security boundaries. It can't be ruled out completely that third party applications offer a suitable attack vector (e.g. a suid/sgid binary that triggers the affected initialization routines of the library). However, we are currently not aware of such an application. Thus, this issue has been rated as having a low security impact, even though the theoretical CVSSv2 score is quite high. It's still being tracked and a future update may address this issue. Statement: Red Hat Product Security has rated this issue as having Low security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/. |