Red Hat Enterprise Linux 7 update for SDL

1) Out-of-bounds read

EUVDB-ID: #VU23187

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-14906

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

The vulnerability exists due to heap-based buffer over-read in the "BlitNtoN" function in the "video/SDL_blit_N.c" file when called from the "SDL_SoftBlit" function in the "video/SDL_blit.c" file. A remote attacker can trick a victim to open a specially crafted file and perform a denial of service attack.

Note, this issue exists due to incorrect patch implementation in Red Hat Enterprise Linux 7 for vulnerability CVE-2019-13616, described in SB2019112513.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for IBM z Systems: 7

Red Hat Enterprise Linux for Scientific Computing: 7

Red Hat Enterprise Linux Desktop: 7

Red Hat Enterprise Linux Workstation: 7

Red Hat Enterprise Linux Server: 7

Red Hat Enterprise Linux for x86_64: 7.0

External links

http://access.redhat.com/errata/RHSA-2019:4024

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.