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

CVE-2016-9401

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

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

MEDIUM · CVSS 5.5 EPSS 0.00041
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules4 YARA rules0
⬡

Weakness Classification

CWE-416Use After Free
CWE-416Use After Free
▤

Affected Products & Versions

9
gnu bash< 4.4
gnu bashall versions
debian linuxall versions
redhat enterprise linux desktopall versions
redhat enterprise linux serverall versions
redhat enterprise linux server ausall versions
redhat enterprise linux server eusall versions
redhat enterprise linux server tusall versions
◈

Sigma Hunt Rules

4
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productmediumInteractive Bash Suspicious Children
productmediumIndirect Command Execution From Script File Via Bash.EXE
productmediumIndirect Inline Command Execution Via Bash.EXE
productlowBash Interactive Shell
▣

Scoring & Timeline

5.5
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD23 Jan 2017 · 09:59 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

6
suse-csafopenSUSE-SU-2024:10106-1
suse-csafSUSE-SU-2017:1337-1
usnUSN-3294-1
suse-csafSUSE-SU-2017:1317-1
rhsaRHSA-2017:1931Low
🔗

References & Sources

6
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://rhn.redhat.com/errata/RHSA-2017-0725.htmlThird Party Advisory
http://www.openwall.com/lists/oss-security/2016/11/17/5Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2016/11/17/9Mailing ListThird Party Advisory
http://www.securityfocus.com/bid/94398Third Party AdvisoryVDB Entry
https://lists.debian.org/debian-lts-announce/2019/03/msg00028.htmlMailing ListThird Party Advisory
https://security.gentoo.org/glsa/201701-02Third Party Advisory
Intelligence Graph · click any node to traverse
CVETechnique ActorTool Family
drag to reposition · click any node to traverse · button top-right enlarges
External lookups - second-class, for what we don’t hold ourselves
NVDCVE.orgCISAVulnersExploit-DBGitHub PoCVulnCheck KEVGreyNoise
Vulnerabilities
CISA KEV catalog
CWE weaknesses
CAPEC attack patterns
Package vulnerabilities
Threat intelligence
Threat actors
Tools & malware
ATT&CK techniques
IOCs
Detection & defense
Sigma rules
YARA rules
Atomic Red Team tests
D3FEND countermeasures
Compliance
NIST 800-53
ISO 27001:2022
SOC 2 TSC
PCI-DSS v4.0
CIS Controls v8.1
About
All capabilities
Live statistics
Data sources
Privacy policy
Terms of service
threatengine.sh  ·  Open-source threat intelligence platform  ·  100+ authoritative sources  ·  Every fact traces to its origin