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CVE-2016-9401

MEDIUM
5.5
CVSS Score
Published: January 23, 2017 at 09:00 PM UTC
Updated: June 17, 2026 at 12:55 AM UTC
8 products affected across 3 vendorsDebian LinuxEnterprise Linux DesktopEnterprise Linux Server

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.4%
SSVC
PoC

Description

popd in bash might allow local users to bypass the restricted shell and cause a use-after-free via a crafted address.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (7)

Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
http://rhn.redhat.com/errata/RHSA-2017-0725.html
Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2016/11/17/5
Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2016/11/17/9
VDB Entryx_refsource_BIDThird Party Advisory
Source: [email protected]
http://www.securityfocus.com/bid/94398
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2017:1931
Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2019/03/msg00028.html
Vendor Advisoryx_refsource_GENTOOThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/201701-02

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416

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