CVE-2018-16336

Exiv2::Internal::PngChunk::parseTXTChunk in Exiv2 v0.26 allows remote attackers to cause a denial...

6.5 MediumFix available

Exiv2::Internal::PngChunk::parseTXTChunk in Exiv2 v0.26 allows remote attackers to cause a denial of service (heap-based buffer over-read) via a crafted image file, a different vulnerability than CVE-2018-10999.

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: None
Integrity: None
Availability: High

Exploit likelihood

2.73%Up 1.4 points since Apr 14, 2021

What each source reports

NVD Score used 6.5

Record: CVE-2018-16336
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:N/I:N/A:P
Weakness: CWE-125
Updated: 2026-11-02

CVE List No score

Record: CVE-2018-16336
Updated: 2026-11-02

EUVDEUVD-2018-0060 No score

Record: EUVD-2018-0060
Updated: 2026-11-03

GitHub AdvisoriesGHSA-f8wg-6gh7-2p7p 6.5

Exiv2::Internal::PngChunk::parseTXTChunk in Exiv2 v0.26 allows remote attackers to cause a denial...

Record: GHSA-f8wg-6gh7-2p7p
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness: CWE-125
Updated: 2026-11-02

OSV 6.5

Record: CVE-2018-16336
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVDEBIAN-CVE-2018-16336 6.5

Record: DEBIAN-CVE-2018-16336
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVPYSEC-2018-135 6.5

Record: PYSEC-2018-135
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2018-16336 6.5

Record: UBUNTU-CVE-2018-16336
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVUSN-3852-1 No score

exiv2 vulnerabilities

It was discovered that Exiv2 incorrectly handled certain files. An attacker could possibly use this issue to cause a denial of service. CVE-2017-9239 only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2017-11591, CVE-2017-11683, CVE-2017-14859, CVE-2017-14862, CVE-2017-14864, CVE-2017-17669, CVE-2017-9239, CVE-2018-16336, CVE-2018-1758)

Record: USN-3852-1
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`exiv2` Debian:12	before 0.27.2-6	0.27.2-6
`exiv2` Debian:13	before 0.27.2-6	0.27.2-6
`exiv2` Debian:14	before 0.27.2-6	0.27.2-6
`exiv2` Debian:8	before 0.24-4.1+deb8u2, plus listed versions 0.24-4.10.24-4.1+deb8u1	0.24-4.1+deb8u2
`exiv2` Ubuntu:14.04:LTS	before 0.23-1ubuntu2.2, plus listed versions 0.23-1ubuntu10.23-1ubuntu20.23-1ubuntu2.1	0.23-1ubuntu2.2
`exiv2` Ubuntu:16.04:LTS	before 0.25-2.1ubuntu16.04.3, plus listed versions 0.25-1ubuntu10.25-2.10.25-2.1ubuntu16.04.10.25-2.1ubuntu16.04.2	0.25-2.1ubuntu16.04.3
`exiv2` Ubuntu:18.04:LTS	before 0.25-3.1ubuntu0.18.04.2, plus listed versions 0.25-3.10.25-3.1ubuntu0.18.04.1	0.25-3.1ubuntu0.18.04.2

History

History
Recorded	Changed	Sources
Nov 3, 2026	affected
Nov 3, 2026	affected, aliases, references	EUVD
Nov 2, 2026	first indexed	OSV
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

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

In short

CVE-2018-16336 is a medium vulnerability (CVSS 6.5) in Exiv2, published September 1, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.73%, the 86th percentile. Fixed in exiv2 0.27.2-6.

References

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