CVE-2010-3876
First published: Thu Nov 04 2010(Updated: )
Description of problem: packet_getname_spkt() doesn't initialize all members of sa_data field of sockaddr struct if strlen(dev->name) < 13. This structure is then copied to userland. It leads to leaking of contents of kernel stack memory. We have to fully fill sa_data with strncpy() instead of strlcpy(). The same with packet_getname(): it doesn't initialize sll_pkttype field of sockaddr_ll. Set it to zero. Reference: <a href="http://marc.info/?l=linux-netdev&m=128854507220908&w=2">http://marc.info/?l=linux-netdev&m=128854507220908&w=2</a> <a href="http://seclists.org/oss-sec/2010/q4/94">http://seclists.org/oss-sec/2010/q4/94</a> Acknowledgements: Red Hat would like to thank Vasiliy Kulikov of Openwall for reporting this issue.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/linux-2.6 | ||
| Linux Linux kernel | =2.6.37-rc1 | |
| Linux Linux kernel | <2.6.37 | |
| Linux Linux kernel | =2.6.37 | |
| SUSE Linux Enterprise Server | =10-sp3 | |
| SUSE Linux Enterprise Server | =9 | |
| openSUSE openSUSE | =11.2 | |
| openSUSE openSUSE | =11.3 | |
| SUSE Linux Enterprise Desktop | =10-sp3 | |
| SUSE Linux Enterprise Software Development Kit | =10-sp3 | |
| Suse Linux Enterprise Real Time Extension | =11-sp1 | |
| Debian Debian Linux | =5.0 |
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Reference Links
- http://www.securityfocus.com/archive/1/520102/100/0/threaded
- http://secunia.com/advisories/42789
- http://secunia.com/advisories/42890
- http://secunia.com/advisories/42963
- http://www.securityfocus.com/bid/44630
- http://secunia.com/advisories/46397
- http://www.vupen.com/english/advisories/2011/0024
- http://www.vupen.com/english/advisories/2011/0168
- http://www.debian.org/security/2010/dsa-2126
- https://bugzilla.redhat.com/show_bug.cgi?id=649715
- http://www.redhat.com/support/errata/RHSA-2010-0958.html
- http://www.redhat.com/support/errata/RHSA-2011-0004.html
- http://www.redhat.com/support/errata/RHSA-2011-0007.html
- http://www.redhat.com/support/errata/RHSA-2011-0162.html
- http://marc.info/?l=linux-netdev&m=128854507220908&w=2
- http://openwall.com/lists/oss-security/2010/11/02/7
- http://openwall.com/lists/oss-security/2010/11/02/10
- http://openwall.com/lists/oss-security/2010/11/02/12
- http://openwall.com/lists/oss-security/2010/11/02/9
- http://openwall.com/lists/oss-security/2010/11/04/5
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=67286640f638f5ad41a946b9a3dc75327950248f
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.37-rc2
- http://www.vmware.com/security/advisories/VMSA-2011-0012.html
- https://launchpad.net/bugs/cve/CVE-2010-3876
- http://marc.info/?l=linux-netdev&m=128854507220908&w=2
- http://seclists.org/oss-sec/2010/q4/94
- http://www.redhat.com/security/updates/errata
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=67286640f638f5ad41a946b9a3dc75327950248f
- https://rhn.redhat.com/errata/RHSA-2010-0958.html
- https://rhn.redhat.com/errata/RHSA-2011-0004.html
- https://rhn.redhat.com/errata/RHSA-2011-0007.html
- https://rhn.redhat.com/errata/RHSA-2011-0162.html
- https://security-tracker.debian.org/tracker/CVE-2010-3876
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-3876
- https://nvd.nist.gov/vuln/detail/CVE-2010-3876
- https://ubuntu.com/security/CVE-2010-3876
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