Description
The get_next_block function in archival/libarchive/decompress_bunzip2.c in BusyBox 1.27.2 has an Integer Overflow that may lead to a write access violation.
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 | busybox | 1:1.27.2-2 | — |
| Debian 13 | busybox | 1:1.27.2-2 | — |
| Debian 12 | busybox | 1:1.27.2-2 | — |
| Debian 9 | busybox | 1:1.22.0-19+deb9u1 | DLA-2559-1 |
| Debian 8 | busybox | 1:1.22.0-9+deb8u2 | DLA-1445-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | busybox | 1:1.27.2-1ubuntu4 | USN-3935-1 |
| Ubuntu 16.04 LTS | busybox | 1:1.22.0-15ubuntu1.4 | USN-3935-1 |
| Ubuntu 14.04 LTS | busybox | 1:1.21.0-1ubuntu1.4 | USN-3935-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | busybox | 1.35.0-150400.3.3.1 | SUSE-SU-2022:3959-1 |
| SLES 15 SP3 | busybox | 1.34.1-4.9.1 | SUSE-SU-2022:0135-1 |
| SLES 15 SP2 | busybox | 1.34.1-4.9.1 | SUSE-SU-2022:0135-1 |
| SLES 15 SP1 | busybox | 1.34.1-4.9.1 | SUSE-SU-2022:0135-1 |
| SLES 15 | busybox | 1.34.1-4.9.1 | SUSE-SU-2022:0135-1 |
Show 20 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | busybox | 1.35.0-4.3.1 | SUSE-SU-2022:4253-1 |
| SLES 12 SP4 | busybox | 1.35.0-4.3.1 | SUSE-SU-2022:4253-1 |
| SLES 12 SP3 | busybox | 1.35.0-4.3.1 | SUSE-SU-2022:4253-1 |
| SLES 12 SP2 | busybox | 1.35.0-4.3.1 | SUSE-SU-2022:4253-1 |
| SLES for SAP 15 SP2 | busybox | 1.34.1-4.9.1 | SUSE-SU-2022:0135-1 |
| SLES for SAP 15 SP1 | busybox | 1.34.1-4.9.1 | SUSE-SU-2022:0135-1 |
| SLES for SAP 15 | busybox | 1.34.1-4.9.1 | SUSE-SU-2022:0135-1 |
| SLES for SAP 12 SP5 | busybox | 1.35.0-4.3.1 | SUSE-SU-2022:4253-1 |
| SLES for SAP 12 SP4 | busybox | 1.35.0-4.3.1 | SUSE-SU-2022:4253-1 |
| SLE Real Time 15 SP2 | busybox | 1.34.1-4.9.1 | SUSE-SU-2022:0135-2 |
| SLE HPC 15 SP2 | busybox | 1.34.1-4.9.1 | SUSE-SU-2022:0135-1 |
| SLE HPC 15 SP1 | busybox | 1.34.1-4.9.1 | SUSE-SU-2022:0135-1 |
| SLE HPC 15 | busybox | 1.34.1-4.9.1 | SUSE-SU-2022:0135-1 |
| SUSE OpenStack Cloud Crowbar 9 | busybox | 1.35.0-4.3.1 | SUSE-SU-2022:4253-1 |
| SUSE OpenStack Cloud 9 | busybox | 1.35.0-4.3.1 | SUSE-SU-2022:4253-1 |
| SUSE Manager Server 4.1 | busybox | 1.34.1-4.9.1 | SUSE-SU-2022:0135-1 |
| SUSE Manager Retail Branch Server 4.1 | busybox | 1.34.1-4.9.1 | SUSE-SU-2022:0135-1 |
| SUSE Manager Proxy 4.1 | busybox | 1.34.1-4.9.1 | SUSE-SU-2022:0135-1 |
| SUSE Enterprise Storage 7 | busybox | 1.34.1-4.9.1 | SUSE-SU-2022:0135-1 |
| SUSE Enterprise Storage 6 | busybox | 1.34.1-4.9.1 | SUSE-SU-2022:0135-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | busybox | 1.35.0-1.1 | openSUSE-SU-2024:11738-1 |
| openSUSE Leap 15.4 | busybox | 1.35.0-150400.3.3.1 | SUSE-SU-2022:3959-1 |
| openSUSE Leap 15.3 | busybox | 1.34.1-4.9.1 | openSUSE-SU-2022:0135-1 |
| openSUSE Leap 15.3 | virtualbox | 6.1.34-lp153.2.27.2 | openSUSE-SU-2022:0135-1 |
| openSUSE Leap 15.3 | virtualbox-kmp | 6.1.34-lp153.2.27.1 | openSUSE-SU-2022:0135-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | busybox | 1.27.2-r4 | — |
| Alpine v3.23 | busybox | 1.27.2-r4 | — |
| Alpine v3.22 | busybox | 1.27.2-r4 | — |
| Alpine v3.21 | busybox | 1.27.2-r4 | — |
| Alpine v3.20 | busybox | 1.27.2-r4 | — |
Show 17 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | busybox | 1.27.2-r4 | — |
| Alpine v3.18 | busybox | 1.27.2-r4 | — |
| Alpine v3.17 | busybox | 1.27.2-r4 | — |
| Alpine v3.16 | busybox | 1.27.2-r4 | — |
| Alpine v3.15 | busybox | 1.27.2-r4 | — |
| Alpine v3.14 | busybox | 1.27.2-r4 | — |
| Alpine v3.13 | busybox | 1.27.2-r4 | — |
| Alpine v3.12 | busybox | 1.27.2-r4 | — |
| Alpine v3.11 | busybox | 1.27.2-r4 | — |
| Alpine v3.10 | busybox | 1.27.2-r4 | — |
| Alpine v3.9 | busybox | 1.27.2-r4 | — |
| Alpine v3.8 | busybox | 1.27.2-r4 | — |
| Alpine v3.7 | busybox | 1.27.2-r4 | — |
| Alpine v3.6 | busybox | 1.26.2-r9 | — |
| Alpine v3.5 | busybox | 1.25.1-r1 | — |
| Alpine v3.4 | busybox | 1.24.2-r13 | — |
| Alpine v3.3 | busybox | 1.24.2-r2 | — |
Advisories 9
- DLA-2559-1 busybox - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1445-1 busybox - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-3935-1 busybox vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2022:3959-1 Security update for busybox SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0135-2 Security update for busybox SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:0135-1 Security update for busybox SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2022:0135-1 Security update for busybox SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11738-1 busybox-1.35.0-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2022:4253-1 Security update for busybox SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://git.busybox.net/busybox/commit/?id=0402cb32df015d9372578e3db27db47b33d5c7b0
- [debian-lts-announce] 20180727 [SECURITY] [DLA 1445-1] busybox security update mailing-list
- https://bugs.busybox.net/show_bug.cgi?id=10431
- USN-3935-1 vendor-advisory
- [debian-lts-announce] 20210215 [SECURITY] [DLA 2559-1] busybox security update mailing-list