Description
The build package before 20171128 did not check directory names during extraction of build results that allowed untrusted builds to write outside of the target system,allowing escape out of buildroots.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| SUSE | build | unspecified – ≤ 20171128 | — |
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 | obs-build | 20180302-1 | — |
| Debian 13 | obs-build | 20180302-1 | — |
| Debian 12 | obs-build | 20180302-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | obs-build | No fix yet | — |
| Ubuntu 16.04 LTS | obs-build | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 | build | 20190128-3.3.2 | SUSE-SU-2019:0387-1 |
| SLES 12 SP3 | build | 20171128-9.3.2 | SUSE-SU-2017:3253-1 |
| SLES 12 SP3 | obs-service-source_validator | 0.7-9.3.1 | SUSE-SU-2017:3253-1 |
| SLES 12 SP3 | osc | 0.162.0-15.3.1 | SUSE-SU-2017:3253-1 |
| SLES 12 SP2 | build | 20171128-9.3.2 | SUSE-SU-2017:3253-1 |
| SLES 12 SP2 | obs-service-source_validator | 0.7-9.3.1 | SUSE-SU-2017:3253-1 |
| SLES 12 SP2 | osc | 0.162.0-15.3.1 | SUSE-SU-2017:3253-1 |
| SLES 11 SP4 | build | 20171128-8.3.3 | SUSE-SU-2018:0065-1 |
| SLES 11 SP4 | osc | 0.162.1-7.4.1 | SUSE-SU-2018:0065-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.0 | build | 20190128-lp150.2.3.1 | openSUSE-SU-2019:0232-1 |
Advisories 4
- openSUSE-SU-2019:0232-1 Security update for build SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0387-1 Security update for build SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:0065-1 Fixing security issues on OBS toolchain SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:3253-1 Fixing security issues on OBS toolchain SUSE / openSUSE Security Updates · Feb 4, 2026
References
- SUSE-SU-2017:3253 vendor-advisory
- SUSE-SU-2018:0065 vendor-advisory
- openSUSE-SU-2017:3259 vendor-advisory