libtiff: Heap-based buffer overflow in PackBitsEncode function in tif_packbits.c
Published Dec 28, 2017
8.8
HIGHCVSS 3.0
EPSS 2.42%
Description
In LibTIFF 4.0.9, there is a heap-based buffer over-read in the function PackBitsEncode in tif_packbits.c.
Affected products
No data.
No data.
Red Hat Enterprise Linux 5
libtiff
Will not fix
Red Hat Enterprise Linux 6
libtiff
Will not fix
Red Hat Enterprise Linux 7
compat-libtiff3
Will not fix
Red Hat Enterprise Linux 7
libtiff
Will not fix
Red Hat Enterprise Linux 8
libtiff
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | libtiff | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | libtiff | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | compat-libtiff3 | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | libtiff | Will not fix | n/a |
| Red Hat Enterprise Linux 8 | libtiff | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
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:R/S:U/C:H/I:H/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
AV:N/AC:M/Au:N/C:P/I:P/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
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Table of values (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.42% (0.02421) | 83.58th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.41% (0.02412) | 81.91th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.29% (0.00292) | 69.45th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.29% (0.00292) | 68.25th | v3 (v2023.03.01) |
| Oct 13, 2023 | 0.29% (0.00292) | 65.57th | v3 (v2023.03.01) |
| May 21, 2023 | 0.35% (0.00348) | 67.55th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.35% (0.00354) | 67.51th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00885) | 26.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.62% (0.00624) | 17.80th | v1 |
| Jan 6, 2022 | 0.62% (0.00624) | 17.24th | v1 |
| Sep 1, 2021 | 0.62% (0.00624) | 45.04th | v1 |
| Apr 14, 2021 | 0.62% (0.00624) | 0.00th | v1 |
References (6)
- http://bugzilla.maptools.org/show_bug.cgi?id=2767 x_refsource_MISCExploitIssue TrackingThird Party AdvisoryVDB Entry
- http://www.securityfocus.com/bid/102312 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2017-17942 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1529524 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2017-17942
- https://www.cve.org/CVERecord?id=CVE-2017-17942
| Link | Providers | Tags |
|---|---|---|
| http://bugzilla.maptools.org/show_bug.cgi?id=2767 | x_refsource_MISCExploitIssue TrackingThird Party AdvisoryVDB Entry | |
| http://www.securityfocus.com/bid/102312 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2017-17942 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1529524 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-17942 | ||
| https://www.cve.org/CVERecord?id=CVE-2017-17942 |
Change history (0)
No recorded changes yet.