Amazon Linux AMI update for libexif

Published: 2020-07-17

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2020-0093 CVE-2020-13112
CWE-ID	CWE-125
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Amazon Linux AMI Operating systems & Components / Operating system
Vendor	Amazon Web Services

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds read

EUVDB-ID: #VU28271

Risk: Low

CVSSv3.1: 4.4 [CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-0093

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

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to a missing bounds check in "exif_data_save_data_entry" of "exif-data.c" file within the Media framework functionality. A local user can trigger out-of-bounds read error and read contents of memory on the system.

Mitigation

Update the affected packages:

i686:
    libexif-debuginfo-0.6.21-6.7.amzn1.i686
    libexif-devel-0.6.21-6.7.amzn1.i686
    libexif-0.6.21-6.7.amzn1.i686

src:
    libexif-0.6.21-6.7.amzn1.src

x86_64:
    libexif-devel-0.6.21-6.7.amzn1.x86_64
    libexif-0.6.21-6.7.amzn1.x86_64
    libexif-debuginfo-0.6.21-6.7.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

External links

http://alas.aws.amazon.com/ALAS-2020-1393.html

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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

2) Out-of-bounds read

EUVDB-ID: #VU28183

Risk: High

CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-13112