Red Hat Enterprise Linux Incomplete Fix CVE-2018-16509 PostScript Document os command injection
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
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7.0 | $0-$5k | 0.00 |
A vulnerability was found in Red Hat Enterprise Linux (Operating System) (the affected version unknown). It has been classified as critical. Affected is an unknown part of the component Incomplete Fix CVE-2018-16509. The manipulation as part of a PostScript Document leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:
It was found that RHSA-2018:2918 did not fully fix CVE-2018-16509. An attacker could possibly exploit another variant of the flaw and bypass the -dSAFER protection to, for example, execute arbitrary shell commands via a specially crafted PostScript document. This only affects ghostscript 9.07 as shipped with Red Hat Enterprise Linux 7.
The bug was discovered 12/03/2018. The weakness was published 12/03/2018 by Tavis Ormandy as confirmed git commit (GIT Repository). The advisory is available at git.ghostscript.com. This vulnerability is traded as CVE-2018-16863 since 09/11/2018. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1202 by the MITRE ATT&CK project.
The vulnerability scanner Nessus provides a plugin with the ID 119329 (Oracle Linux 7 : ghostscript (ELSA-2018-3761)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 157879 (Oracle Enterprise Linux Security Update for ghostscript (ELSA-2018-3761)).
Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.ghostscript.com. A possible mitigation has been published 1 days after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (119329). Similar entries are available at 123289, 123342 and 123595.
Product
Type
Vendor
Name
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
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CVSSv3
VulDB Meta Base Score: 7.1VulDB Meta Temp Score: 7.0
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.8
NVD Vector: 🔍
CNA Base Score: 7.3
CNA Vector (Red Hat, Inc.): 🔍
CVSSv2
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
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Exploiting
Class: Os command injectionCWE: CWE-78 / CWE-74 / CWE-707
ATT&CK: T1202
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Nessus ID: 119329
Nessus Name: Oracle Linux 7 : ghostscript (ELSA-2018-3761)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Patch: git.ghostscript.com
Timeline
08/21/2018 🔍09/11/2018 🔍
12/03/2018 🔍
12/03/2018 🔍
12/03/2018 🔍
12/04/2018 🔍
12/04/2018 🔍
12/04/2018 🔍
06/12/2023 🔍
Sources
Vendor: redhat.comAdvisory: RHSA-2018:3761
Researcher: Tavis Ormandy
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2018-16863 (🔍)
SecurityFocus: 105122 - Ghostscript Multiple Security Bypass Vulnerabilities
See also: 🔍
Entry
Created: 12/04/2018 07:57Updated: 06/12/2023 14:29
Changes: 12/04/2018 07:57 (77), 04/16/2020 21:13 (6), 06/12/2023 14:24 (4), 06/12/2023 14:28 (12), 06/12/2023 14:29 (1)
Complete: 🔍
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