CVE-2021-23239
LOW
2.5
CVSS Score
Published: January 12, 2021 at 12:00 AM UTC
Updated: June 17, 2026 at 03:38 AM UTC
6 products affected across 4 vendorsDebian LinuxFedoraCloud Backup
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Severity
LOW2.5
Exploit prediction
EPSS 1%
Description
The sudoedit personality of Sudo before 1.9.5 may allow a local unprivileged user to perform arbitrary directory-existence tests by winning a sudo_edit.c race condition in replacing a user-controlled directory by a symlink to an arbitrary path.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Debian Linux· Debiandrupal
95%Cloud Backup· NetAppdrupal
95%All versions
All versions
v < 1.8.321.9.0 ≤ v < 1.9.5
Affected range stops below 1.8.32, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.9.5, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EE42Y35SMJOLONAIBNYNFC7J44UUZ2Y6/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GMY4VSSBIND7VAYSN6T7XIWJRWG4GBB3/
- https://security.gentoo.org/glsa/202101-33
- https://www.sudo.ws/stable.html#1.9.5
References (7)
ExploitIssue TrackingThird Party Advisory
Source: [email protected]
https://bugzilla.suse.com/show_bug.cgi?id=CVE-2021-23239Mailing ListThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2022/11/msg00007.htmlVendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EE42Y35SMJOLONAIBNYNFC7J44UUZ2Y6/Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GMY4VSSBIND7VAYSN6T7XIWJRWG4GBB3/Vendor Advisoryx_refsource_GENTOOThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/202101-33x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20210129-0010/x_refsource_CONFIRMRelease NotesVendor Advisory
Source: [email protected]
https://www.sudo.ws/stable.html#1.9.5CVSS
- Attack Vector
- LOCAL
- Complexity
- HIGH
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- LOW
- Integrity
- NONE
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-59
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