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Fencer Vulns
medium 5.3

CVE-2018-3837 json

An exploitable information disclosure vulnerability exists in the PCX image rendering functionality of Simple DirectMedia Layer SDL2_image-…

published 2018-04-10 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-15623

cvss
5.3
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 69%
public exploits
0
none known

Summary

An exploitable information disclosure vulnerability exists in the PCX image rendering functionality of Simple DirectMedia Layer SDL2_image-2.0.2. A specially crafted PCX image can cause an out-of-bounds read on the heap, resulting in information disclosure . An attacker can display a specially crafted image to trigger this vulnerability.

Patch / fix

  • sdl-image1.2 Debian 14, Debian 13, Debian 12 1.2.12-8
  • libsdl2-image Debian 14, Debian 13, Debian 12 2.0.3+dfsg1-1

debian advisories DEBIAN-CVE-2018-3837

  • sdl-image1.2 Ubuntu 14.04 LTS 1.2.12-5+deb9u1build0.14.04.1
  • sdl-image1.2 Ubuntu 16.04 LTS 1.2.12-5+deb9u1build0.16.04.1
  • libsdl2-image Ubuntu 14.04 LTS 2.0.0+dfsg-3+deb8u1build0.14.04.1
  • libsdl2-image Ubuntu 16.04 LTS 2.0.1+dfsg-2+deb9u1build0.16.04.1

ubuntu advisories UBUNTU-CVE-2018-3837

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • sdl2_image Alpine 3.6, Alpine 3.5 2.0.1-r2
  • sdl2_image Alpine 3.7 2.0.2-r1

alpine advisories ALPINE-CVE-2018-3837

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-3837 updated cvss 3.1

SDL2_image: information disclosure in the PCX image rendering functionality

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.24% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • talosintelligence.com https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0519 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.0 5.3 CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N

Affected products

  • Cisco Systems, Inc. Simple Direct Media

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.