CVE-2011-1769: Divide by Zero
First published: Fri May 06 2011(Updated: )
A flaw was discovered in systemtap's handling of DWARF expressions where it did not guard against two cases of divide by zero. This can result in a kernel div-by-zero message and possible busywait during stap module shutdown. A div-by-zero could cause the kernel to panic and if the kernel reboot on panic flag was set (panic_on_oops), it would cause the system to reboot. In order to trigger this flaw, it would require a user with staprun or stapdev group membership (or root privileges) to run a particular stap script operation on a hand-corrupted elf program.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Systemtap Systemtap | =1.1 | |
| Systemtap Systemtap | =1.2 | |
| Systemtap Systemtap | =0.3 | |
| Systemtap Systemtap | =0.9.5 | |
| Systemtap Systemtap | =0.4 | |
| Systemtap Systemtap | =0.6.2 | |
| Systemtap Systemtap | =0.5.10 | |
| Systemtap Systemtap | =0.8 | |
| Systemtap Systemtap | =0.9 | |
| Systemtap Systemtap | =0.5.14 | |
| Systemtap Systemtap | =0.7.2 | |
| Systemtap Systemtap | =0.9.8 | |
| Systemtap Systemtap | =0.7 | |
| Systemtap Systemtap | =0.5.12 | |
| Systemtap Systemtap | =0.5.4 | |
| Systemtap Systemtap | =0.6 | |
| Systemtap Systemtap | =0.5.7 | |
| Systemtap Systemtap | =0.9.7 | |
| Systemtap Systemtap | =0.9.9 | |
| Systemtap Systemtap | =0.5.8 | |
| Systemtap Systemtap | =0.5.3 | |
| Systemtap Systemtap | =0.2.2 | |
| Systemtap Systemtap | =0.5.5 | |
| Systemtap Systemtap | =0.5.13 | |
| Systemtap Systemtap | =0.5.9 | |
| Systemtap Systemtap | <=1.4 | |
| Systemtap Systemtap | =1.0 | |
| Systemtap Systemtap | =1.3 | |
| Systemtap Systemtap | =0.5 | |
| redhat/systemtap | <0:1.3-4.el5_6.1 | 0:1.3-4.el5_6.1 |
| redhat/systemtap | <0:1.4-6.el6_1.1 | 0:1.4-6.el6_1.1 |
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Reference Links
- http://www.securityfocus.com/bid/47934
- https://bugzilla.redhat.com/show_bug.cgi?id=702687
- http://openwall.com/lists/oss-security/2011/05/20/2
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:154
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:155
- https://rhn.redhat.com/errata/RHSA-2011-0842.html
- http://secunia.com/advisories/44802
- http://sourceware.org/git/?p=systemtap.git%3Ba=commit%3Bh=fa2e3415185a28542d419a641ecd6cddd52e3cd9
- https://www.cve.org/CVERecord?id=CVE-2011-1769 https://nvd.nist.gov/vuln/detail/CVE-2011-1769
- https://access.redhat.com/errata/RHSA-2011:0841
- https://access.redhat.com/errata/RHSA-2011:0842
- https://access.redhat.com/security/cve/CVE-2011-1769
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=497383&action=diff
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=497383&action=edit
- https://access.redhat.com/security/cve/CVE-2011-1781
- http://sourceware.org/git/?p=systemtap.git;a=commit;h=fa2e3415185a28542d419a641ecd6cddd52e3cd9
- https://rhn.redhat.com/errata/RHSA-2011-0841.html
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