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Fencer Intel
critical 9.8

CVE-2015-8668 in the critical feed json

Heap-based buffer overflow in the PackBitsPreEncode function in tif_packbits.c in bmp2tiff in libtiff 4.0.6 and earlier allows remote attac…

published 2016-01-08 10 y ago modified 2026-06-17 4 mo ago also EUVD-2015-8545

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
13.7%
EPSS 13.7% chance of exploitation in 30 days, percentile 96%
public exploits
0
none known

Summary

Heap-based buffer overflow in the PackBitsPreEncode function in tif_packbits.c in bmp2tiff in libtiff 4.0.6 and earlier allows remote attackers to execute arbitrary code or cause a denial of service via a large width field in a BMP image.

Patch / fix

  • tiff Debian 14, Debian 13, Debian 12 4.0.6-3

debian advisories DEBIAN-CVE-2015-8668

  • tiff Ubuntu 14.04 LTS 4.0.3-7ubuntu0.6
  • tiff Ubuntu 16.04 LTS 4.0.6-1ubuntu0.1

ubuntu advisories UBUNTU-CVE-2015-8668

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • libtiff RHEL 6 3.9.4-18.el6_8
  • libtiff RHEL 7 4.0.3-25.el7_2
  • libtiff-tools RHEL 7 4.0.3-25.el7_2

red hat advisories RHSA-2016:1547RHSA-2016:1546

  • tiff SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 4.0.9-44.80.1
  • tiff SLES for SAP 11 SP4, SLES 11 SP4, SLE Software Development Kit 11 SP4 3.8.2-141.169.16.1

suse advisories SUSE-SU-2024:0915-1SUSE-SU-2018:2676-1

  • libtiff Arch Linux 4.0.7-1
  • lib32-libtiff Arch Linux 4.0.7-1

arch linux advisories AVG-85AVG-86

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2015-8668 updated cvss 3.3

libtiff: OOB read in bmp2tiff

  • Red Hat Enterprise Linux 5 libtiff
    affected: no fix available
  • Red Hat Enterprise Linux Client (v. 7) libtiff 4.0.3-25.el7_2 Red Hat Enterprise Linux Client Optional (v. 7) libtiff-tools 4.0.3-25.el7_2 Red Hat Enterprise Linux ComputeNode (v. 7) libtiff 4.0.3-25.el7_2 Red Hat Enterprise Linux ComputeNode Optional (v. 7) libtiff-tools 4.0.3-25.el7_2
    fixed: vendor fix RHSA-2016:1546
  • Red Hat Enterprise Linux Desktop (v. 6) libtiff 3.9.4-18.el6_8 Red Hat Enterprise Linux Desktop Optional (v. 6) libtiff-devel 3.9.4-18.el6_8, libtiff-static 3.9.4-18.el6_8, libtiff-debuginfo 3.9.4-18.el6_8 Red Hat Enterprise Linux HPC Node (v. 6) libtiff 3.9.4-18.el6_8 Red Hat Enterprise Linux HPC Node Optional (v. 6) libtiff-devel 3.9.4-18.el6_8, libtiff-static 3.9.4-18.el6_8, libtiff-debuginfo 3.9.4-18.el6_8 Red Hat Enterprise Linux Server (v. 6) libtiff 3.9.4-18.el6_8
    fixed: vendor fix RHSA-2016:1547
  • Red Hat Enterprise Linux Server (v. 7) libtiff 4.0.3-25.el7_2
    fixed: vendor fix RHSA-2016:1546
  • Red Hat Enterprise Linux Server Optional (v. 6) libtiff-static 3.9.4-18.el6_8, libtiff-debuginfo 3.9.4-18.el6_8
    fixed: vendor fix RHSA-2016:1547
  • Red Hat Enterprise Linux Server Optional (v. 7) libtiff-tools 4.0.3-25.el7_2
    fixed: vendor fix RHSA-2016:1546
  • Red Hat Enterprise Linux Workstation (v. 6) libtiff 3.9.4-18.el6_8
    fixed: vendor fix RHSA-2016:1547
  • Red Hat Enterprise Linux Workstation (v. 7) libtiff 4.0.3-25.el7_2
    fixed: vendor fix RHSA-2016:1546
show 2 more
  • Red Hat Enterprise Linux Workstation Optional (v. 6) libtiff-static 3.9.4-18.el6_8, libtiff-debuginfo 3.9.4-18.el6_8
    fixed: vendor fix RHSA-2016:1547
  • Red Hat Enterprise Linux Workstation Optional (v. 7) libtiff-tools 4.0.3-25.el7_2
    fixed: vendor fix RHSA-2016:1546

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

13.72% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • packetstormsecurity.com http://packetstormsecurity.com/files/135080/libtiff-4.0.6-Heap-Overflow.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.