CVE-2026-12912

Summary

A flaw was found in libtiff. A remote attacker could exploit this vulnerability by providing a specially crafted PixarLog-compressed TIFF image. This issue occurs when decoding Pixarlog codec images with the PIXARLOGDATAFMT_8BITABGR output format and a specific stride value, leading to a heap-based buffer overflow. This could potentially result in arbitrary code execution or a denial of service (DoS).

Affected Software

VendorProductVersion RangeStatus
Red HatRed Hat Enterprise Linux 100:4.6.0-8.el10_2.4 < *unaffected
Red HatRed Hat Enterprise Linux 10.0 Extended Update Support0:4.6.0-6.el10_0.4 < *unaffected
Red HatRed Hat Enterprise Linux 7 Extended Lifecycle Support0:3.9.4-12.el7_9.3 < *unaffected
Red HatRed Hat Enterprise Linux 80:3.9.4-16.el8_10 < *unaffected
Red HatRed Hat Enterprise Linux 80:4.0.9-38.el8_10 < *unaffected
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support0:3.9.4-13.el8_4.3 < *unaffected
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support0:4.0.9-18.el8_4.3 < *unaffected
Red HatRed Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On0:3.9.4-13.el8_4.3 < *unaffected
Red HatRed Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On0:4.0.9-18.el8_4.3 < *unaffected
Red HatRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support0:3.9.4-13.el8_6.3 < *unaffected
Red HatRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support0:4.0.9-21.el8_6.3 < *unaffected
Red HatRed Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On0:3.9.4-13.el8_6.3 < *unaffected
Red HatRed Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On0:4.0.9-21.el8_6.3 < *unaffected
Red HatRed Hat Enterprise Linux 8.8 Telecommunications Update Service0:3.9.4-13.el8_8.3 < *unaffected
Red HatRed Hat Enterprise Linux 8.8 Telecommunications Update Service0:4.0.9-29.el8_8.3 < *unaffected
Red HatRed Hat Enterprise Linux 8.8 Update Services for SAP Solutions0:3.9.4-13.el8_8.3 < *unaffected
Red HatRed Hat Enterprise Linux 8.8 Update Services for SAP Solutions0:4.0.9-29.el8_8.3 < *unaffected
Red HatRed Hat Enterprise Linux 90:4.4.0-18.el9_8.1 < *unaffected
Red HatRed Hat Enterprise Linux 9.2 Update Services for SAP Solutions0:4.4.0-8.el9_2.6 < *unaffected
Red HatRed Hat Enterprise Linux 9.4 Update Services for SAP Solutions0:4.4.0-12.el9_4.6 < *unaffected
Red HatRed Hat Enterprise Linux 9.6 Extended Update Support0:4.4.0-13.el9_6.6 < *unaffected
Red HatRed Hat Hardened Images4.7.1-2.4.hum1 < *unaffected
Red HatRed Hat OpenShift AI 3.01790276886 < *unaffected
Red HatRed Hat OpenShift AI 3.01790276884 < *unaffected
Red HatRed Hat OpenShift AI 3.01790277045 < *unaffected
Red HatRed Hat OpenShift AI 3.01790276889 < *unaffected
Red HatRed Hat OpenShift AI 3.01790276974 < *unaffected
Red HatRed Hat OpenShift AI 3.21790703497 < *unaffected
Red HatRed Hat OpenShift AI 3.21790703506 < *unaffected
Red HatRed Hat OpenShift AI 3.21790703590 < *unaffected
Red HatRed Hat OpenShift AI 3.21790703568 < *unaffected
Red HatRed Hat OpenShift AI 3.21790703586 < *unaffected
Red HatRed Hat OpenShift AI 3.21790703494 < *unaffected
Red HatRed Hat OpenShift AI 3.41790703542 < *unaffected

Weaknesses

  • CWE-122: Heap-based Buffer Overflow

Workarounds

To mitigate this issue, applications processing untrusted TIFF images should avoid explicitly configuring PIXARLOGDATAFMT_8BITABGR when decoding PixarLog-compressed TIFF images with three samples per pixel. This specific combination of output format and samples per pixel is required to trigger the heap-based buffer overflow.

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

libtiff: libtiff: Heap-based buffer overflow via crafted PixarLog-compressed TIFF image

Additional References

References