Description
popd in bash might allow local users to bypass the restricted shell and cause a use-after-free via a crafted address.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | bash | 4.4-3 | — |
| Debian 13 | bash | 4.4-3 | — |
| Debian 12 | bash | 4.4-3 | — |
| Debian 8 | bash | 4.3-11+deb8u2 | DLA-1726-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | bash | 4.4-5ubuntu1 | — |
| Ubuntu 16.04 LTS | bash | 4.3-14ubuntu1.2 | USN-3294-1 |
| Ubuntu 14.04 LTS | bash | 4.3-7ubuntu1.7 | USN-3294-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | bash +1 | 4.2.46-28.el7 | RHSA-2017:1931 |
| RHEL 6 | bash +1 | 4.1.2-48.el6 | RHSA-2017:0725 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP2 | bash | 4.3-82.1 | SUSE-SU-2017:1317-1 |
| SLES 11 SP4 | bash | 3.2-147.35.1 | SUSE-SU-2017:1337-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP2 | bash | 4.3-82.1 | SUSE-SU-2017:1317-1 |
| SLES for SAP 11 SP4 | bash | 3.2-147.35.1 | SUSE-SU-2017:1337-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | bash | 7.0-92.1 | openSUSE-SU-2024:10106-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.5 | bash | 4.3.46-r5 | — |
| Alpine v3.4 | bash | 4.3.42-r5 | — |
| Alpine v3.3 | bash | 4.3.42-r5 | — |
| Alpine v3.2 | bash | 4.3.33-r2 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | bash +1 | 4.2.46-28.el7 | ELSA-2017-1931 |
Advisories 8
- RHSA-2017:1931 Red Hat Security Advisory: bash security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2017:0725 Red Hat Security Advisory: bash security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DLA-1726-1 bash - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-3294-1 bash vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2017:1317-1 Security update for bash SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10106-1 bash-4.4-92.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:1337-1 Security update for bash SUSE / openSUSE Security Updates · Feb 4, 2026
- ELSA-2017-1931 Moderate: bash security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Aug 7, 2017
References
- RHSA-2017:0725 vendor-advisory
- RHSA-2017:1931 vendor-advisory
- [oss-security] 20161117 bash - popd controlled free mailing-list
- [oss-security] 20161117 Re: bash - popd controlled free mailing-list
- 94398 vdb-entry
- GLSA-201701-02 vendor-advisory
- [debian-lts-announce] 20190325 [SECURITY] [DLA 1726-1] bash security update mailing-list