SystemTap 1.4, when unprivileged (aka stapusr) mode is enabled, allows local users to cause a denial of service (divide-by-zero error and OOPS) via a crafted ELF program with DWARF expressions that are not properly handled by a stap script that performs stack unwinding (aka backtracing).
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Systemtap | Systemtap | 1.4 (including) | 1.4 (including) |
| Red Hat Enterprise Linux 6 | RedHat | systemtap-0:1.4-6.el6_1.1 | * |
| Systemtap | Ubuntu | hardy | * |
| Systemtap | Ubuntu | lucid | * |
| Systemtap | Ubuntu | maverick | * |
| Systemtap | Ubuntu | natty | * |
| Systemtap | Ubuntu | oneiric | * |
| Systemtap | Ubuntu | upstream | * |
References
- http://openwall.com/lists/oss-security/2011/05/20/2
- http://secunia.com/advisories/44802
- http://sourceware.org/git/?p=systemtap.git%3Ba=commit%3Bh=fa2e3415185a28542d419a641ecd6cddd52e3cd9
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:155
- http://www.securityfocus.com/bid/47934
- https://bugzilla.redhat.com/show_bug.cgi?id=702687
- https://rhn.redhat.com/errata/RHSA-2011-0842.html
- http://openwall.com/lists/oss-security/2011/05/20/2
- http://secunia.com/advisories/44802
- http://sourceware.org/git/?p=systemtap.git%3Ba=commit%3Bh=fa2e3415185a28542d419a641ecd6cddd52e3cd9
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:155
- http://www.securityfocus.com/bid/47934
- https://bugzilla.redhat.com/show_bug.cgi?id=702687
- https://rhn.redhat.com/errata/RHSA-2011-0842.html