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Vulnerability record · CVE-2015-8239 · published 10 October 2017

CVE-2015-8239: Sudo project sudo race condition vulnerability

Sudo Project · Sudo

The SHA-2 digest support in the sudoers plugin in sudo after 1.8.7 allows local users with write permissions to parts of the called command to replace them before it is executed.

7.0 CVSS 3.0 High EPSS 0.54% · top 53.9% CWE-362 · Race condition
7.0CVSS 3.0 base score, v2 6.9
0.54%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
10References
17 Jun 2026Last modified by NVD

Description

The SHA-2 digest support in the sudoers plugin in sudo after 1.8.7 allows local users with write permissions to parts of the called command to replace them before it is executed.

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.openwall.com/lists/oss-security/2015/11/18/22 Mailing ListThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1283635 Issue TrackingPatchThird Party Advisory
https://www.sudo.ws/repos/sudo/rev/0cd3cc8fa195 Issue TrackingPatchThird Party Advisory
https://www.sudo.ws/repos/sudo/rev/24a3d9215c64 Issue TrackingPatchThird Party Advisory
https://www.sudo.ws/repos/sudo/rev/397722cdd7ec Issue TrackingPatchThird Party Advisory
http://www.openwall.com/lists/oss-security/2015/11/18/22 Mailing ListThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1283635 Issue TrackingPatchThird Party Advisory
https://www.sudo.ws/repos/sudo/rev/0cd3cc8fa195 Issue TrackingPatchThird Party Advisory
https://www.sudo.ws/repos/sudo/rev/24a3d9215c64 Issue TrackingPatchThird Party Advisory
https://www.sudo.ws/repos/sudo/rev/397722cdd7ec Issue TrackingPatchThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2015-8239), CISA KEV, FIRST EPSS (scores of 2026-11-13). This page is refreshed as NVD updates the record.