CVE-2019-12221

Exp

An issue was discovered in libSDL2.a in Simple DirectMedia Layer (SDL) 2.0.9 when used in conjunction with libSDL2_image.a in SDL2_image 2.0.4. There is a SEGV in the SDL function SDL_free_REAL at stdlib/SDL_malloc.c.

Published: 2019-05-20 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-12221 is rated High Exploit Risk (68.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.38%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2019-12221

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2019-12221

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-29 2.00% 1.38% -0.61%
2 2026-04-20 2.11% 2.00% -0.12%
3 2025-12-28 — 2.11% —

Full EPSS history (26 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-12221

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 3.6 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2019-12221

OS Trackers for CVE-2019-12221

vendor priority summary link
alpine medium CVE-2019-12221: 1 source package rows (sdl2_image); 1 state rows across 1 repos (3.10-main); fixed 1, open 0. https://security.alpinelinux.org/vuln/CVE-2019-12221
debian not yet assigned CVE-2019-12221 not yet assigned priority: Debian including 2 source packages (libsdl2-image, sdl-image1.2), 10 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 10. https://security-tracker.debian.org/tracker/CVE-2019-12221
redhat low — https://access.redhat.com/security/cve/CVE-2019-12221
ubuntu low CVE-2019-12221 low priority: Ubuntu including 2 source packages (libsdl2-image, sdl-image1.2), 36 status rows across 18 suites (bionic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 26, released 6, ignored 2, needed 2. https://ubuntu.com/security/CVE-2019-12221

Affected software / configurations for CVE-2019-12221

Vendor Product Version Raw CPE
libsdl sdl2_image 2.0.4 cpe:2.3:a:libsdl:sdl2_image:2.0.4:*:*:*:*:*:*:*
libsdl simple_directmedia_layer 2.0.9 cpe:2.3:a:libsdl:simple_directmedia_layer:2.0.9:*:*:*:*:*:*:*
fedoraproject fedora 29 cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*
fedoraproject fedora 31 cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
canonical ubuntu_linux 16.04 cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
canonical ubuntu_linux 18.04 cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
opensuse backports_sle 15.0 cpe:2.3:a:opensuse:backports_sle:15.0:-:*:*:*:*:*:*
opensuse backports_sle 15.0 cpe:2.3:a:opensuse:backports_sle:15.0:sp1:*:*:*:*:*:*
opensuse leap 15.0 cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*
opensuse leap 15.1 cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

References for CVE-2019-12221

URL Tags
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00012.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00029.html Mailing List Third Party Advisory
https://bugzilla.libsdl.org/show_bug.cgi?id=4628 Exploit Issue Tracking Vendor Advisory
https://lists.debian.org/debian-lts-announce/2019/07/msg00021.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/07/msg00026.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GY6FDFPYUJ7YPY3XB5U75VJHBSVRVIKO/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WJ2VRD57UOBT72JUC2DIFHEFCH4N64SW/
https://usn.ubuntu.com/4238-1/ Third Party Advisory
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