Heap out-of-bounds read in Simple DirectMedia Layer - CVE-2019-7636

Vulnerability identifier: #VU17683

CSH Severity: Low

CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2019-7636

CWE-ID: CWE-125

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to heap-based buffer over-read condition in the SDL_GetRGB function. A remote attacker can trick the victim into accessing a crafted image file and perform a denial of service attack.

Simple DirectMedia Layer
Gentoo Linux
Arch Linux
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for ARM 64
Opensuse
Fedora
busybox (Alpine package)
libsdl1.2 (Ubuntu package)
sdl (Alpine package)
SDL (Red Hat package)
libsdl2 (Ubuntu package)
sdl2 (Alpine package)
firefox-esr (Alpine package)
mingw-SDL
SDL

Install update from vendor's website.

libsdl1.2 (Ubuntu package) - addressed in versions 1.2.15+dfsg1-3ubuntu0.1, 1.2.15+dfsg2-0.1ubuntu0.1
sdl (Alpine package) - update to 1.2.15-r8
SDL (Red Hat package) - addressed in versions 1.2.15-17.el7, 1.2.15-38.el8
libsdl2 (Ubuntu package) - addressed in versions 2.0.4+dfsg1-2ubuntu2.16.04.2, 2.0.8+dfsg1-1ubuntu1.18.04.4, 2.0.9+dfsg1-1ubuntu1.19.04.1
sdl2 (Alpine package) - update to 2.0.10-r0
mingw-SDL - update to 1.2.15-14.fc31
SDL - addressed in versions 1.2.15-31.fc28, 1.2.15-36.fc29

• https://bugzilla.libsdl.org/show_bug.cgi?id=4499
• https://discourse.libsdl.org/t/vulnerabilities-found-in-libsdl-1-2-15/25720

• Multiple vulnerabilities in Simple Direct Media Layer
• OpenSUSE Linux update for SDL
• OpenSUSE Linux update for SDL
• OpenSUSE Linux update for SDL2
• Arch Linux update for sdl2
• Gentoo update for Simple DirectMedia Layer
• Ubuntu update for SDL 2.0
• Arch Linux update for sdl
• Ubuntu update for SDL
• Heap out-of-bounds read in sdl (Alpine package)
• Heap out-of-bounds read in sdl2 (Alpine package)
• Heap out-of-bounds read in busybox (Alpine package)
• Red Hat Enterprise Linux 7 update for SDL
• Red Hat Enterprise Linux 8 update for SDL
• Heap out-of-bounds read in firefox-esr (Alpine package)
• Gentoo update for libsdl
• Fedora 29 update for SDL
• Fedora 28 update for SDL
• Fedora 31 update for mingw-SDL