CVE-2009-2911

Severity: low (CVSS 1.9 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2009-10-22 · updated 2026-06-16
Weakness: CWE-264

Description

SystemTap 1.0, when the --unprivileged option is used, does not properly restrict certain data sizes, which allows local users to (1) cause a denial of service or gain privileges via a print operation with a large number of arguments that trigger a kernel stack overflow, (2) cause a denial of service via crafted DWARF expressions that trigger a kernel stack frame overflow, or (3) cause a denial of service (infinite loop) via vectors that trigger creation of large unwind tables, related to Common Information Entry (CIE) and Call Frame Instruction (CFI) records.

Affected products

Systemtap: 1.0

References

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41633
http://secunia.com/advisories/37167
http://sources.redhat.com/bugzilla/show_bug.cgi?id=10750
http://www.openwall.com/lists/oss-security/2009/10/21/1
http://www.securityfocus.com/bid/36778
http://www.vupen.com/english/advisories/2009/2989
https://bugzilla.redhat.com/show_bug.cgi?id=529175
https://www.redhat.com/archives/fedora-package-announce/2009-October/msg00627.html
https://www.redhat.com/archives/fedora-package-announce/2009-October/msg00793.html
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41633
http://secunia.com/advisories/37167
http://sources.redhat.com/bugzilla/show_bug.cgi?id=10750

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