SB2020093011 - Red Hat Enterprise Linux 7 update for libexif
Published: September 30, 2020
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 secuirty vulnerabilities.
1) Integer overflow (CVE-ID: CVE-2019-9278)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to integer overflow. A remote attacker can pass specially crafted data to the application, trigger integer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
2) Out-of-bounds read (CVE-ID: CVE-2020-0093)
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.
3) Out-of-bounds read (CVE-ID: CVE-2020-0182)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a missing bounds check when processing files. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.
4) Division by zero (CVE-ID: CVE-2020-12767)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to division by zero error in "exif_entry_get_value" in the "exif-entry.c" file. A local user can cause a denial of service condition on the target system.
5) NULL pointer dereference (CVE-ID: CVE-2020-13113)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in EXIF Makernote handling. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.
6) Buffer overflow (CVE-ID: CVE-2020-13114)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error when handling Canon EXIF MakerNote data. A remote attacker can send a specially crafted file, trigger memory corruption and cause a denial of service condition on the target system.
Remediation
Install update from vendor's website.