Description
A flaw was found in libtiff. A heap-buffer overflow vulnerability exists in the `tiff2pdf` utility due to an integer truncation error when processing crafted BigTIFF files. An attacker can provide a specially crafted BigTIFF file, causing a 64-bit `StripByteCounts` value to be truncated to a 32-bit integer. This leads to an undersized memory allocation and a subsequent out-of-bounds memory copy, resulting in a crash and severe memory corruption.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Red Hat | Red Hat Hardened Images | — | — |
| Red Hat | Red Hat Ceph Storage 4 | — | — |
| Red Hat | Red Hat Ceph Storage 6 | — | — |
| Red Hat | Red Hat Ceph Storage 7 | — | — |
| Red Hat | Red Hat Ceph Storage 8 | — | — |
| Red Hat | Red Hat Ceph Storage 9 | — | — |
| 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 | tiff | 4.7.1-1 | — |
| Debian 13 | tiff | No fix yet | — |
| Debian 12 | tiff | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | qtwebengine-opensource-src | No fix yet | — |
| Ubuntu 26.04 LTS | tiff | No fix yet | — |
| Ubuntu 24.04 LTS | tiff | No fix yet | — |
| Ubuntu 22.04 LTS | tiff | No fix yet | — |
| Ubuntu 20.04 LTS | neuron | No fix yet | — |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | neuron | No fix yet | — |
| Ubuntu Pro 26.04 LTS | qtwebengine-opensource-src | No fix yet | — |
| Ubuntu Pro 24.04 LTS | texmaker +1 | No fix yet | — |
| Ubuntu Pro 22.04 LTS | texmaker +1 | No fix yet | — |
| Ubuntu Pro 20.04 LTS | tiff +2 | No fix yet | — |
| Ubuntu Pro 18.04 LTS | tiff +2 | No fix yet | — |
| Ubuntu Pro 16.04 LTS | gdal +1 | No fix yet | — |
| Ubuntu Pro 14.04 LTS | gdal +1 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Hardened Images 1 | libtiff +3 | 4.7.2-2.hum1 | RHSA-2026:53467 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | tiff | 4.0.9-150000.45.72.1 | SUSE-SU-2026:4845-1 |
| SLES 12 SP5 | tiff | 4.0.9-44.118.1 | SUSE-SU-2026:4252-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLE Micro 5.5 | tiff | 4.0.9-150000.45.72.1 | SUSE-SU-2026:4845-1 |
| SLE Micro 5.4 | tiff | 4.0.9-150000.45.72.1 | SUSE-SU-2026:4845-1 |
| SLE Micro 5.3 | tiff | 4.0.9-150000.45.72.1 | SUSE-SU-2026:4845-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | libtiff | No fix yet | — |
Advisories 4
- SUSE-SU-2026:4845-1 Security update for tiff SUSE / openSUSE Security Updates · Oct 22, 2026
- WID-SEC-2026-3338 libTIFF: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Oct 21, 2026
- RHSA-2026:53467 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 8, 2026
- SUSE-SU-2026:4252-1 Security update for tiff SUSE / openSUSE Security Updates · Sep 18, 2026