Description
A flaw was found in parted. A heap-based buffer overflow exists in libparted's file system resizing logic when handling FAT16 volumes. By convincing a user or administrator to resize a specially crafted FAT16 file system image with malformed directory metadata, an attacker can trigger an oversized read into a fixed-size memory buffer. This issue causes memory corruption, resulting in an application crash and a denial of service (DoS).
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
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 | parted | 3.8-2 | — |
| Debian 13 | parted | No fix yet | — |
| Debian 12 | parted | 3.5-3+deb12u1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | parted | No fix yet | — |
| Ubuntu 26.04 LTS | parted | No fix yet | — |
| Ubuntu 24.04 LTS | parted | No fix yet | — |
| Ubuntu 22.04 LTS | parted | No fix yet | — |
| Ubuntu 20.04 LTS | parted | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | parted | No fix yet | — |
| Ubuntu 16.04 LTS | parted | No fix yet | — |
| Ubuntu 14.04 LTS | parted | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | parted | 3.2-150300.21.6.1 | SUSE-SU-2026:5117-1 |
| SLES 15 SP6 | parted | 3.2-150300.21.6.1 | SUSE-SU-2026:5117-1 |
| SLES 15 SP5 | parted | 3.2-150300.21.6.1 | SUSE-SU-2026:5117-1 |
| SLES 15 SP4 | parted | 3.2-150300.21.6.1 | SUSE-SU-2026:5117-1 |
| SLES 12 SP5 | parted | 3.1-37.29.1 | SUSE-SU-2026:5090-1 |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP6 | parted | 3.2-150300.21.6.1 | SUSE-SU-2026:5117-1 |
| SLES for SAP 15 SP5 | parted | 3.2-150300.21.6.1 | SUSE-SU-2026:5117-1 |
| SLES for SAP 15 SP4 | parted | 3.2-150300.21.6.1 | SUSE-SU-2026:5117-1 |
| SLE Micro 5.5 | parted | 3.2-150300.21.6.1 | SUSE-SU-2026:5117-1 |
| SLE Micro 5.4 | parted | 3.2-150300.21.6.1 | SUSE-SU-2026:5117-1 |
| SLE Micro 5.3 | parted | 3.2-150300.21.6.1 | SUSE-SU-2026:5117-1 |
| SLE HPC 15 SP5 | parted | 3.2-150300.21.6.1 | SUSE-SU-2026:5117-1 |
| SLE HPC 15 SP4 | parted | 3.2-150300.21.6.1 | SUSE-SU-2026:5117-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | parted +1 | 3.4-2.amzn2023.0.3 | ALAS2023-2026-3189 |
| Amazon Linux 2 | parted +1 | 3.1-29.amzn2.0.1 | ALAS2-2026-3982 |
Advisories 4
- SUSE-SU-2026:5117-1 Security update for parted SUSE / openSUSE Security Updates · Nov 5, 2026
- SUSE-SU-2026:5090-1 Security update for parted SUSE / openSUSE Security Updates · Nov 4, 2026
- ALAS2-2026-3982 Important: parted security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 12, 2026
- ALAS2023-2026-3189 Important: parted security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Oct 12, 2026
References
- https://access.redhat.com/security/cve/CVE-2026-89088 vdb-entry
- RHBZ#2462951 issue-tracking