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CVE-2018-14550

Out-of-bounds write in libpng

8.8 HighFix available

An issue has been found in third-party PNM decoding associated with libpng 1.6.35. It is a stack-based buffer overflow in the function get_token in pnm2png.c in pnm2png.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

3.54%Up 2.7 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 8.8

An issue has been found in third-party PNM decoding associated with libpng 1.6.35. It is a stack-based buffer overflow in the function get_token in pnm2png.c in pnm2png.

Record
CVE-2018-14550
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0
6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness
CWE-787
Updated
2026-11-02
CVE List No score

An issue has been found in third-party PNM decoding associated with libpng 1.6.35. It is a stack-based buffer overflow in the function get_token in pnm2png.c in pnm2png.

Record
CVE-2018-14550
Updated
2026-11-02
EUVDEUVD-2021-0701 No score

An issue has been found in third-party PNM decoding associated with libpng 1.6.35. It is a stack-based buffer overflow in the function get_token in pnm2png.c in pnm2png.

Record
EUVD-2021-0701
Updated
2026-11-03
GitHub AdvisoriesGHSA-qwwr-qc2p-6283 8.8

Out-of-bounds write in libpng

An issue has been found in third-party PNM decoding associated with libpng 1.6.35. It is a stack-based buffer overflow in the function get_token in pnm2png.c in pnm2png.

Record
GHSA-qwwr-qc2p-6283
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-787
Updated
2026-11-02
OSVALPINE-CVE-2018-14550 8.8

An issue has been found in third-party PNM decoding associated with libpng 1.6.35. It is a stack-based buffer overflow in the function get_token in pnm2png.c in pnm2png.

Record
ALPINE-CVE-2018-14550
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVAZL-44014 8.8

CVE-2018-14550 affecting package libpng15 1.5.30-15

An issue has been found in third-party PNM decoding associated with libpng 1.6.35. It is a stack-based buffer overflow in the function get_token in pnm2png.c in pnm2png.

Record
AZL-44014
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
Show 5 moreShow less
OSVAZL-45027 8.8

CVE-2018-14550 affecting package libpng15 1.5.30-15

An issue has been found in third-party PNM decoding associated with libpng 1.6.35. It is a stack-based buffer overflow in the function get_token in pnm2png.c in pnm2png.

Record
AZL-45027
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-05
OSVBELL-CVE-2018-14550 8.8

CVE-2018-14550 does not affect BellSoft software

Record
BELL-CVE-2018-14550
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSV 8.8

An issue has been found in third-party PNM decoding associated with libpng 1.6.35. It is a stack-based buffer overflow in the function get_token in pnm2png.c in pnm2png.

Record
CVE-2018-14550
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2018-14550 8.8

An issue has been found in third-party PNM decoding associated with libpng 1.6.35. It is a stack-based buffer overflow in the function get_token in pnm2png.c in pnm2png.

Record
DEBIAN-CVE-2018-14550
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVGHSA-qwwr-qc2p-6283 8.8

Out-of-bounds write in libpng

An issue has been found in third-party PNM decoding associated with libpng 1.6.35. It is a stack-based buffer overflow in the function get_token in pnm2png.c in pnm2png.

Record
GHSA-qwwr-qc2p-6283
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-787
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
libpng
NuGet
 through 1.6.35
1.6.37
libpng
Alpine:v3.10
 before 1.6.37-r0
1.6.37-r0
libpng
Alpine:v3.11
 before 1.6.37-r0
1.6.37-r0
libpng
Alpine:v3.12
 before 1.6.37-r0
1.6.37-r0
libpng
Alpine:v3.13
 before 1.6.37-r0
1.6.37-r0
libpng
Alpine:v3.14
 before 1.6.37-r0
1.6.37-r0
libpng
Alpine:v3.15
 before 1.6.37-r0
1.6.37-r0
libpng
Alpine:v3.16
 before 1.6.37-r0
1.6.37-r0
libpng
Alpine:v3.17
 before 1.6.37-r0
1.6.37-r0
libpng
Alpine:v3.18
 before 1.6.37-r0
1.6.37-r0
Show 16 moreShow less
Affected packages
PackageAffectedFixed
libpng
Alpine:v3.19
 before 1.6.37-r0
1.6.37-r0
libpng
Alpine:v3.20
 before 1.6.37-r0
1.6.37-r0
libpng
Alpine:v3.21
 before 1.6.37-r0
1.6.37-r0
libpng
Alpine:v3.22
 before 1.6.37-r0
1.6.37-r0
libpng
Alpine:v3.23
 before 1.6.37-r0
1.6.37-r0
libpng
Alpine:v3.24
 before 1.6.37-r0
1.6.37-r0
libpng
Alpine:v3.6
 before 1.6.37-r0
1.6.37-r0
libpng
Alpine:v3.7
 before 1.6.37-r0
1.6.37-r0
libpng
Alpine:v3.8
 before 1.6.37-r0
1.6.37-r0
libpng
Alpine:v3.9
 before 1.6.37-r0
1.6.37-r0
libpng15
Azure Linux:2
 through 1.5.30-15 None known
libpng15
Azure Linux:3
 through 1.5.30-15 None known
libpng1.6
Debian:12
 before 1.6.37-1
1.6.37-1
libpng1.6
Debian:13
 before 1.6.37-1
1.6.37-1
libpng1.6
Debian:14
 before 1.6.37-1
1.6.37-1
libpng
NuGet
 before 1.6.37, plus listed versions
1.5.10.111.5.10.131.5.10.91.6.18.11.6.19.1
Show 6 moreShow less
1.6.20.11.6.23.11.6.24.11.6.25.11.6.26.11.6.28.1
1.6.37

History

History
RecordedChangedSources
factsOSV
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-14550 is a high vulnerability (CVSS 8.8) in Libpng, published July 10, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.54%, the 89th percentile. Fixed in libpng 1.6.37.

References

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