CVE-2010-4079: Infoleak
First published: Mon Nov 01 2010(Updated: )
Description of problem: The FBIOGET_VBLANK device ioctl in ivtvfb.c allows unprivileged users to read 16 bytes of uninitialized stack memory, because the 'reserved' member of the fb_vblank struct declared on the stack is not altered or zeroed before being copied back to the user. Reference: <a href="http://www.openwall.com/lists/oss-security/2010/10/06/6">http://www.openwall.com/lists/oss-security/2010/10/06/6</a> <a href="http://lkml.org/lkml/2010/9/15/393">http://lkml.org/lkml/2010/9/15/393</a> Acknowledgements: Red Hat would like to thank Dan Rosenberg for reporting this issue.
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | =2.6.36-rc2 | |
| Linux Linux kernel | =2.6.36-rc1 | |
| Linux Linux kernel | =2.6.36-rc5 | |
| Linux Linux kernel | =2.6.36-rc3 | |
| Linux Linux kernel | =2.6.36-rc4 | |
| Linux Linux kernel | =2.6.36-rc6 | |
| Linux Linux kernel | =2.6.36-rc7 | |
| Linux Linux kernel | <2.6.36 | |
| Linux Linux kernel | =2.6.36 | |
| Debian Debian Linux | =5.0 | |
| debian/linux-2.6 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=648666
- http://lkml.org/lkml/2010/9/15/393
- http://www.openwall.com/lists/oss-security/2010/09/25/2
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/v2.6.36/ChangeLog-2.6.36-rc8
- http://www.openwall.com/lists/oss-security/2010/10/25/3
- http://www.openwall.com/lists/oss-security/2010/10/06/6
- http://www.openwall.com/lists/oss-security/2010/10/07/1
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=405707985594169cfd0b1d97d29fcb4b4c6f2ac9
- http://www.securityfocus.com/bid/45062
- http://www.debian.org/security/2010/dsa-2126
- http://www.redhat.com/support/errata/RHSA-2010-0958.html
- http://secunia.com/advisories/42890
- http://www.redhat.com/support/errata/RHSA-2011-0007.html
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=405707985594169cfd0b1d97d29fcb4b4c6f2ac9
- https://launchpad.net/bugs/cve/CVE-2010-4079
- http://git.kernel.org/linus/405707985594169cfd0b1d97d29fcb4b4c6f2ac9
- https://rhn.redhat.com/errata/RHSA-2010-0958.html
- https://rhn.redhat.com/errata/RHSA-2011-0007.html
- https://security-tracker.debian.org/tracker/CVE-2010-4079
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-4079
- https://nvd.nist.gov/vuln/detail/CVE-2010-4079
- https://ubuntu.com/security/CVE-2010-4079
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