libtiff: out-of-bounds read in the tagCompare function
Published Oct 3, 2016
7.5
HIGHCVSS 3.0
EPSS 1.68%
Description
The tagCompare function in tif_dirinfo.c in the thumbnail tool in LibTIFF 4.0.6 and earlier allows remote attackers to cause a denial of service (out-of-bounds read) via vectors related to field_tag matching.
Affected products
No data.
No data.
Red Hat Enterprise Linux 5
libtiff
Not affected
Red Hat Enterprise Linux 6
libtiff
Not affected
Red Hat Enterprise Linux 7
compat-libtiff3
Not affected
Red Hat Enterprise Linux 7
libtiff
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | libtiff | Not affected | n/a |
| Red Hat Enterprise Linux 6 | libtiff | Not affected | n/a |
| Red Hat Enterprise Linux 7 | compat-libtiff3 | Not affected | n/a |
| Red Hat Enterprise Linux 7 | libtiff | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the versions of libtiff as shipped with Red Hat Enterprise Linux 5, 6 and 7. This issue did not affect the versions of compat-libtiff3 as shipped with Red Hat Enterprise Linux 7.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.68% (0.01675) | 76.01th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.68% (0.01675) | 73.76th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.69% (0.00693) | 70.16th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.77% (0.00772) | 81.98th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.77% (0.00772) | 80.70th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.77% (0.00772) | 78.50th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
References (8)
- http://bugzilla.maptools.org/show_bug.cgi?id=2547 x_refsource_MISCIssue Tracking
- http://www.openwall.com/lists/oss-security/2016/04/08/13 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/93335 vdb-entryx_refsource_BID
- https://access.redhat.com/security/cve/CVE-2016-3634 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1326267 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2016-3634
- https://security.gentoo.org/glsa/201701-16 vendor-advisoryx_refsource_GENTOO
- https://www.cve.org/CVERecord?id=CVE-2016-3634
| Link | Providers | Tags |
|---|---|---|
| http://bugzilla.maptools.org/show_bug.cgi?id=2547 | x_refsource_MISCIssue Tracking | |
| http://www.openwall.com/lists/oss-security/2016/04/08/13 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| http://www.securityfocus.com/bid/93335 | vdb-entryx_refsource_BID | |
| https://access.redhat.com/security/cve/CVE-2016-3634 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1326267 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2016-3634 | ||
| https://security.gentoo.org/glsa/201701-16 | vendor-advisoryx_refsource_GENTOO | |
| https://www.cve.org/CVERecord?id=CVE-2016-3634 |
Change history (0)
No recorded changes yet.