CVE-2016-9401
MEDIUMCVSS 5.5/10EPSS 0.43%
Last modified
CVE-2016-9401 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. popd in bash might allow local users to bypass the restricted shell and cause a use-after-free via a crafted address.. EPSS estimates a 0.43% chance of exploitation in the next 30 days.
Description
popd in bash might allow local users to bypass the restricted shell and cause a use-after-free via a crafted address.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Gnu | Bash | < 4.4 | — |
| Gnu | Bash | 4.4 | Patch1 |
| Debian | Debian Linux | 8.0 | — |
| Redhat | Enterprise Linux Desktop | 6.0 | — |
| Redhat | Enterprise Linux Desktop | 7.0 | — |
| Redhat | Enterprise Linux Server | 6.0 | — |
| Redhat | Enterprise Linux Server | 7.0 | — |
| Redhat | Enterprise Linux Server Aus | 7.4 | — |
| Redhat | Enterprise Linux Server Aus | 7.6 | — |
| Redhat | Enterprise Linux Server Aus | 7.7 | — |
| Redhat | Enterprise Linux Server Eus | 7.4 | — |
| Redhat | Enterprise Linux Server Eus | 7.5 | — |
| Redhat | Enterprise Linux Server Eus | 7.6 | — |
| Redhat | Enterprise Linux Server Eus | 7.7 | — |
| Redhat | Enterprise Linux Server Tus | 7.6 | — |
| Redhat | Enterprise Linux Server Tus | 7.7 | — |
| Redhat | Enterprise Linux Workstation | 6.0 | — |
| Redhat | Enterprise Linux Workstation | 7.0 | — |
References
- http://rhn.redhat.com/errata/RHSA-2017-0725.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/11/17/5Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/11/17/9Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/94398Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:1931Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/03/msg00028.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201701-02Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0725.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/11/17/5Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/11/17/9Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/94398Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:1931Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/03/msg00028.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201701-02Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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.
How severe is CVE-2016-9401?
CVE-2016-9401 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.43% probability of exploitation in the next 30 days.
How do I fix CVE-2016-9401?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2016-9401?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST