NULL pointer dereference in Libgd
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. Only affects PHP when linked with an external libgd (not bundled).
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.034 (88.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 88.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.034 · newest: 0.034 · change: 0.000
Affected products
- Libgd — versions 2.1.0
- Canonical Ubuntu Linux — versions 14.04, 16.04, 18.04
- Debian Linux — versions 8.0
- Fedoraproject Fedora — versions 32
- openSUSE Leap — versions 15.1
Weakness classification (CWE)
References
- bugzilla.redhat.com/show_bug.cgi (Permissions Required, Issue Tracking)
- github.com/libgd/libgd/pull/580 (Third Party Advisory)
- github.com/libgd/libgd/commit/a93eac0e843148dc2d631c3ba80af17e9c8c860f (Patch, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2020/02/msg00014.html (mailing-list, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-03/msg00020.html (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- usn.ubuntu.com/4316-2/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4316-1/ (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2024/04/msg00003.html (mailing-list)
Frequently asked questions
- What is CVE-2018-14553?
- CVE-2018-14553 is a high-severity vulnerability in Libgd, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2020-02-11.
- How severe is CVE-2018-14553?
- High severity. CVSS v3 base score is 7.5 out of 10.