Bug 843139 (CVE-2012-3400)
| Summary: | CVE-2012-3400 kernel: udf: buffer overflow when parsing sparing table | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | Petr Matousek <pmatouse> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | low | Docs Contact: | |
| Priority: | low | ||
| Version: | unspecified | CC: | agordeev, anton, bhu, davej, dhoward, fhrbata, gansalmon, itamar, jforbes, jkacur, jonathan, jwboyer, kernel-maint, kernel-mgr, kzhang, lgoncalv, lwang, madhu.chinakonda, plougher, rt-maint, sforsber, vgoyal, williams |
| 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: | 2013-08-24 13:14:01 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: | 843140, 843141, 843142, 843143, 843144, 843145, 843146 | ||
| Bug Blocks: | 843149 | ||
Created kernel tracking bugs for this issue Affects: fedora-all [bug 843146] Statement: This issue does affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG 2. The Red Hat Security Response Team has rated this issue as having low security impact. A future kernel updates may address this issue. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/. This issue has been addressed in following products: Red Hat Enterprise Linux 6 Via RHSA-2012:1426 https://rhn.redhat.com/errata/RHSA-2012-1426.html This issue has been addressed in following products: MRG for RHEL-6 v.2 Via RHSA-2012:1491 https://rhn.redhat.com/errata/RHSA-2012-1491.html This issue has been addressed in following products: Red Hat Enterprise Linux 5 Via RHSA-2013:0594 https://rhn.redhat.com/errata/RHSA-2013-0594.html |
Description of problem: A specially-crafted UDF filesystem could cause buffer overflow when parsing sparing tables in udf_load_logicalvol()@fs/udf/super.c. The bug is fixed in upstream kernel via the following commits: commit 1df2ae31c724e57be9d7ac00d78db8a5dabdd050 Author: Jan Kara <jack () suse cz> Date: Wed Jun 27 21:23:07 2012 +0200 udf: Fortify loading of sparing table Add sanity checks when loading sparing table from disk to avoid accessing unallocated memory or writing to it. and commit adee11b2085bee90bd8f4f52123ffb07882d6256 Author: Jan Kara <jack () suse cz> Date: Wed Jun 27 20:20:22 2012 +0200 udf: Avoid run away loop when partition table length is corrupted Check provided length of partition table so that (possibly maliciously) corrupted partition table cannot cause accessing data beyond current buffer. Upstream fixes: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=1df2ae31c724e57be9d7ac00d78db8a5dabdd050 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=adee11b2085bee90bd8f4f52123ffb07882d6256 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=57b9655d References: http://seclists.org/oss-sec/2012/q3/2