CVE-2018-14553
gdImageClone in gd.c in libgd 2.1.0-rc2 through 2.2.5 has a NULL pointer dereference allowing attackers to crash an application via a specific function call sequence.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.44%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
gdImageClone in gd.c in libgd 2.1.0-rc2 through 2.2.5 has a NULL pointer dereference allowing attackers to crash an application via a specific function call sequence. Only affects PHP when linked with an external libgd (not bundled).
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 3.44% probability · 89th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- libgd/libgd · fedoraproject/fedora · canonical/ubuntu linux · debian/debian linux · opensuse/leap
- Source
- cve@mitre.org
EPSS 3.4% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00020.htmlThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1599032Issue Tracking, Permissions Required
- https://github.com/libgd/libgd/commit/a93eac0e843148dc2d631c3ba80af17e9c8c860fPatch, Third Party Advisory
- https://github.com/libgd/libgd/pull/580Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/02/msg00014.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/04/msg00003.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3CZ2QADQTKRHTGB2AHD7J4QQNDLBEMM6/
- https://usn.ubuntu.com/4316-1/Third Party Advisory
- https://usn.ubuntu.com/4316-2/Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00020.htmlThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1599032Issue Tracking, Permissions Required
- https://github.com/libgd/libgd/commit/a93eac0e843148dc2d631c3ba80af17e9c8c860fPatch, Third Party Advisory
- https://github.com/libgd/libgd/pull/580Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/02/msg00014.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/04/msg00003.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3CZ2QADQTKRHTGB2AHD7J4QQNDLBEMM6/
- https://usn.ubuntu.com/4316-1/Third Party Advisory
- https://usn.ubuntu.com/4316-2/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.