CVE-2011-1769: SystemTap 1.4 and earlier, when unprivileged (aka stapusr) mode is enabled, allows local users to cause a deni

Q: How do I fix CVE-2011-1769?

systemtap: upgrade to newer than 1.4. Exact commands for each OS are on this page.

Q: Is CVE-2011-1769 being exploited?

CVE-2011-1769 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2011-1769 affect?

CVE-2011-1769 affects systemtap. Severity is low (CVSS 1.2). SystemTap 1.4 and earlier, 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

Q: How urgent is CVE-2011-1769?

Priority 10/100. No elevated risk signals yet.

Routine

LOW 1.2UPGRADE

CVE-2011-1769 is a low-severity flaw (CVSS 1.2) affecting systemtap. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SystemTap 1.4 and earlier, 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 context variable access.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	1.2 (Low)
EPSS exploit chance	0.3% (top 78%)
CISA exploited list	No
Weakness	CWE-189
Published	2011-08-29
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: systemtap

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2011-08-29 21:55 UTCPublished CVE record published
2026-06-16 23:29 UTCUpdated Record last modified

systemtap systemtap UPGRADE

Affected: <= 1.4 · 0.2.2 · 0.3 · 0.4 · 0.5 · 0.5.3 · 0.5.4 · 0.5.5

Fixed in: newer than 1.4

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy systemtap || rpm -q systemtap || systemtap --version

2. UPGRADE to newer than 1.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade systemtap

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade systemtap

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2011-1769?

systemtap: upgrade to newer than 1.4. Exact commands for each OS are on this page.

Is CVE-2011-1769 being exploited?

CVE-2011-1769 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2011-1769 affect?

CVE-2011-1769 affects systemtap. Severity is low (CVSS 1.2). SystemTap 1.4 and earlier, 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

How urgent is CVE-2011-1769?

Priority 10/100. No elevated risk signals yet.

Related CVEs

CVE-2012-0875 MEDIUM 5.4 DOWNGRADE SystemTap 1.7, 1.6.7, and probably other versions, when unprivileged mode is enabled, allows local users to ob
CVE-2011-2503 LOW 3.7 UPGRADE The insert_module function in runtime/staprun/staprun_funcs.c in the systemtap runtime tool (staprun) in Syste
CVE-2011-2502 MEDIUM 4.4 UPGRADE runtime/staprun/staprun_funcs.c in the systemtap runtime tool (staprun) in SystemTap before 1.6 does not prope
CVE-2011-1781 LOW 1.2 DOWNGRADE SystemTap 1.4, when unprivileged (aka stapusr) mode is enabled, allows local users to cause a denial of servic

References

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