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CVE-2019-6978

25
FAUCET Score

CVE-2019-6978 describes a critical double free vulnerability (CWE-415) in the GD Graphics Library (LibGD) versions up to 2.2.5, specifically within gdImage*Ptr() functions, affecting various Linux distributions and LibGD itself. With a CVSS v3 score of 9.8 (CRITICAL), this vulnerability is remotely exploitable without user interaction, allowing for high impact on confidentiality, integrity, and availability. Despite its severity, there is currently no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
2.2.5CPE matchmatch criteria
cpe:2.3:a:libgd:libgd:2.2.5:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
4.42%
Probability of exploitation in next 30 days
EPSS Percentile
90.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0442 is in the 84th percentile among its peer group of 36,897 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (9)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: libwmf-0:0.2.8.4-44.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: libwmf-0:0.2.9-8.el8_0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: gd-0:2.2.5-7.el8
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: gd
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: libwmf
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: gd
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libwmf
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: gd

Vendor Advisories (1)

redhatCVE-2019-6978Low

gd: Double free in the gdImage*Ptr in gd_gif_out.c, gd_jpeg.c, and gd_wbmp.c

Jan 15, 2019

References

lists.opensuse.org / opensuse-security-announce/2019-04/msg00025.html
lists.opensuse.org / opensuse-security-announce/2019-04/msg00031.html
access.redhat.com / errata/RHSA-2019:2722
github.com / libgd/libgd/commit/553702980ae89c83f2d6e254d62cf82e204956d0
PatchThird Party Advisory
github.com / libgd/libgd/issues/492
PatchThird Party Advisory
github.com / php/php-src/commit/089f7c0bc28d399b0420aa6ef058e4c1c120b2ae
PatchThird Party Advisory
lists.debian.org / debian-lts-announce/2019/01/msg00028.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/3CZ2QADQTKRHTGB2AHD7J4QQNDLBEMM6
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/3WRUPZVT2MWFUEMVGTRAGDOBHLNMGK5R
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/TEYUUOW75YD3DENIPYMO263E6NL2NFHI
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/TTXSLRZI5BCQT3H5KALG3DHUWUMNPDX2
security.gentoo.org / glsa/201903-18
Third Party Advisory
usn.ubuntu.com / 3900-1
Third Party Advisory
debian.org / security/2019/dsa-4384
Third Party Advisory