SB2021052209 - Red Hat Enterprise Linux 8 update for ghostscript
Published: May 22, 2021
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 26 secuirty vulnerabilities.
1) Use-after-free (CVE-ID: CVE-2020-14373)
The vulnerability allows a local authenticated user to perform a denial of service (DoS) attack.
A use after free was found in igc_reloc_struct_ptr() of psi/igc.c of ghostscript-9.25. A local attacker could supply a specially crafted PDF file to cause a denial of service.
2) Input validation error (CVE-ID: CVE-2020-16300)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in devices/gdevtfnx.c. A remote attacker can cause a denial of service via a crafted PDF file.
3) Input validation error (CVE-ID: CVE-2020-17538)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in GetNumSameData() and GetNumWrongData() function. A remote attacker can cause a denial of service via a crafted PDF file.
4) Input validation error (CVE-ID: CVE-2020-16310)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in gdevdm24.c. A remote attacker can cause a denial of service via a crafted PDF file.
5) Input validation error (CVE-ID: CVE-2020-16309)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in gdevlxm.c. A remote attacker can cause a denial of service via a crafted eps file.
6) Input validation error (CVE-ID: CVE-2020-16308)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in devices/gdevcdj.c. A remote attacker can cause a denial of service via a crafted PDF file.
7) Input validation error (CVE-ID: CVE-2020-16307)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in devices/vector/gdevtxtw.c. A remote attacker can cause a denial of service via a crafted postscript file.
8) Input validation error (CVE-ID: CVE-2020-16306)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in devices/gdevtsep.c. A remote attacker can cause a denial of service via a crafted postscript file.
9) Input validation error (CVE-ID: CVE-2020-16305)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in devices/gdevpcx.c. A remote attacker can cause a denial of service via a crafted PDF file.
10) Out-of-bounds write (CVE-ID: CVE-2020-16304)
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
A buffer overflow vulnerability in image_render_color_thresh() in base/gxicolor.c of Artifex Software GhostScript v9.50 allows a remote attacker to execute arbitrary code on the system via a crafted eps file.
11) Use-after-free (CVE-ID: CVE-2020-16303)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error when processing a crafted PDF file in devices/vector/gdevxps.c. A remote attacker can trick the victim to open a specially crafted PDF file, trigger a use-after-free error and execute arbitrary code on the target system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
12) Buffer overflow (CVE-ID: CVE-2020-16302)
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
A buffer overflow vulnerability exists in jetp3852_print_page() in devices/gdev3852.c of Artifex Software GhostScript. A remote attacker can trick the victim to open a specially crafted PDF file, trigger memory corruption and execute arbitrary code on the system.
13) Input validation error (CVE-ID: CVE-2020-16301)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service via a crafted PDF file.
14) Input validation error (CVE-ID: CVE-2020-16299)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service via a crafted PDF file.
15) Input validation error (CVE-ID: CVE-2020-16287)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service via a crafted PDF file.
16) Input validation error (CVE-ID: CVE-2020-16298)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service via a crafted PDF file.
17) Input validation error (CVE-ID: CVE-2020-16297)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service via a crafted PDF file.
18) Input validation error (CVE-ID: CVE-2020-16296)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service via a crafted PDF file.
19) Input validation error (CVE-ID: CVE-2020-16295)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service via a crafted PDF file.
20) Input validation error (CVE-ID: CVE-2020-16294)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service via a crafted PDF file.
21) Input validation error (CVE-ID: CVE-2020-16293)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service via a crafted PDF file.
22) Input validation error (CVE-ID: CVE-2020-16292)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service via a crafted PDF file.
23) Input validation error (CVE-ID: CVE-2020-16291)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service via a crafted PDF file.
24) Input validation error (CVE-ID: CVE-2020-16290)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service via a crafted PDF file.
25) Input validation error (CVE-ID: CVE-2020-16289)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service via a crafted PDF file.
26) Input validation error (CVE-ID: CVE-2020-16288)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service via a crafted PDF file.
Remediation
Install update from vendor's website.