Vulnerability Details : 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.
Vulnerability category: Memory Corruption
Products affected by CVE-2016-9401
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_aus:7.7:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_eus:7.7:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_tus:7.7:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:bash:*:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:bash:4.4:patch1:*:*:*:*:*:*
- cpe:2.3:a:gnu:bash:4.4:patch2:*:*:*:*:*:*
- cpe:2.3:a:gnu:bash:4.4:patch3:*:*:*:*:*:*
- cpe:2.3:a:gnu:bash:4.4:patch4:*:*:*:*:*:*
- cpe:2.3:a:gnu:bash:4.4:patch5:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2016-9401
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2016-9401
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.1
|
LOW | AV:L/AC:L/Au:N/C:N/I:N/A:P |
3.9
|
2.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2016-9401
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-9401
-
http://www.securityfocus.com/bid/94398
GNU Bash CVE-2016-9401 Local Security Bypass VulnerabilityThird Party Advisory;VDB Entry
-
http://www.openwall.com/lists/oss-security/2016/11/17/9
oss-security - Re: bash - popd controlled freeMailing List;Third Party Advisory
-
http://www.openwall.com/lists/oss-security/2016/11/17/5
oss-security - bash - popd controlled freeMailing List;Third Party Advisory
-
https://security.gentoo.org/glsa/201701-02
Bash: Multiple vulnerabilities (GLSA 201701-02) — Gentoo securityThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2019/03/msg00028.html
[SECURITY] [DLA 1726-1] bash security updateMailing List;Third Party Advisory
-
https://access.redhat.com/errata/RHSA-2017:1931
RHSA-2017:1931 - Security Advisory - Red Hat Customer PortalThird Party Advisory
-
http://rhn.redhat.com/errata/RHSA-2017-0725.html
RHSA-2017:0725 - Security Advisory - Red Hat Customer PortalThird Party Advisory
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