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CVE-2017-18005

20
FAUCET Score

CVE-2017-18005 describes a Null Pointer Dereference vulnerability in Exiv2 version 0.26, specifically within the Exiv2::DataValue::toLong function in value.cpp, which can be triggered by specially crafted metadata in a TIFF file. This vulnerability primarily affects Debian Linux distributions and the Exiv2 library itself. Rated with a CVSS score of 5.5 (Medium), this vulnerability has a local attack vector and low attack complexity, requiring user interaction (e.g., opening a malicious TIFF file). A successful exploit could lead to a denial of service (system crash) due to the null pointer dereference, but does not impact confidentiality or integrity. There is no evidence of active exploitation, and no public exploit code is available on platforms like Metasploit or ExploitDB. Community discussion and media coverage for this CVE are minimal, indicating a low level of public attention.

Impacted Technologies

VendorProductVersion(s)CPE
0.26CPE matchmatch criteria
cpe:2.3:a:exiv2:exiv2:0.26:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.80%
Probability of exploitation in next 30 days
EPSS Percentile
52.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0080 is in the 60th percentile among its peer group of 5,758 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: exiv2-0:0.27.2-5.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: gegl-0:0.2.0-39.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: gnome-color-manager-0:3.28.0-3.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: libgexiv2-0:0.10.8-4.el8
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: exiv2

Vendor Advisories (1)

redhatCVE-2017-18005Low

exiv2: null pointer dereference in the Exiv2::DataValue::toLong function in value.cpp

Nov 18, 2017

References

github.com / Exiv2/exiv2/issues/168
ExploitIssue TrackingThird Party Advisory
lists.debian.org / debian-lts-announce/2023/01/msg00004.html
Mailing ListThird Party Advisory