parse.c in sudo 1.6.9p17 through 1.6.9p19 does not properly interpret a system group (aka…
Priority LOW 34CWE-863Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-863.
Summary
parse.c in sudo 1.6.9p17 through 1.6.9p19 does not properly interpret a system group (aka %group) in the sudoers file during authorization decisions for a user who belongs to that group, which allows local users to leverage an applicable sudoers file and gain root privileges via a sudo command.
Why it matters now
EPSS 0.00406 35th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:gratisoft:sudo:1.6.9:p17:*:*:*:*:*:* | 1.6.9 p17 | Vulnerable | Gratisoft |
| cpe:2.3:a:gratisoft:sudo:1.6.9:p18:*:*:*:*:*:* | 1.6.9 p18 | Vulnerable | Gratisoft |
| cpe:2.3:a:gratisoft:sudo:1.6.9:p19:*:*:*:*:*:* | 1.6.9 p19 | Vulnerable | Gratisoft |
| cpe:2.3:o:vmware:esx:4.0:*:*:*:*:*:*:* | 4.0 | Vulnerable | VMware |
- cpe:2.3:a:gratisoft:sudo:1.6.9:p17:*:*:*:*:*:* Versions 1.6.9 p17 Vulnerable ·Gratisoft
- cpe:2.3:a:gratisoft:sudo:1.6.9:p18:*:*:*:*:*:* Versions 1.6.9 p18 Vulnerable ·Gratisoft
- cpe:2.3:a:gratisoft:sudo:1.6.9:p19:*:*:*:*:*:* Versions 1.6.9 p19 Vulnerable ·Gratisoft
- cpe:2.3:o:vmware:esx:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·VMware
Remediation
Red Hat 1 advisory
- RHSA-2009:0267 Released 2009-02-05 · Red Hat rating Moderatesudo security update
- Red Hat Enterprise Linux (v. 5 server) sudo-1.6.9p17-3.el5_3.1, sudo-1.6.9p17-3.el5_3.1.i386, sudo-1.6.9p17-3.el5_3.1.ia64 +1
- Red Hat Enterprise Linux Desktop (v. 5 client) sudo-1.6.9p17-3.el5_3.1, sudo-1.6.9p17-3.el5_3.1.i386
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2009:0267 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2009:0267 |
Timeline
- 2026-10-02 Threatist record created from CVE-2009-0034
- 2026-10-03 Alias added: GHSA-4x95-346p-g442
References
Other 10
- 51736
- http://www.sudo.ws/cgi-bin/cvsweb/sudo/parse.c.diff?r1=1.160.2.21&r2=1.160.2.22&f=h
- https://issues.rpath.com/browse/RPL-2954
- ADV-2009-1865
- [Security-announce] 20090710 VMSA-2009-0009 ESX Service Console updates for udev, sudo, and curl
- oval:org.mitre.oval:def:6462
- http://wiki.rpath.com/Advisories:rPSA-2009-0021
- oval:org.mitre.oval:def:10856
- http://www.gratisoft.us/bugzilla/show_bug.cgi?id=327
- https://bugzilla.novell.com/show_bug.cgi?id=468923
Sources
- CVE-2009-0034 · CVE Program
- CVE-2009-0034 · NVD
- FIRST EPSS
- GHSA-4x95-346p-g442 · GitHub Advisory Database · CC BY 4.0
- CVE-2009-0034 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences