Red Hat update for postgresql
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2017-7546 CVE-2017-7547 CVE-2017-7548 |
| CWE-ID | CWE-284 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Red Hat Enterprise Linux for x86_64 Operating systems & Components / Operating system |
| Vendor | Red Hat Inc. |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Authentication bypass
EUVDB-ID: #VU7873
Risk: Low
CVSSv3.1:
CVE-ID: CVE-2017-7546
CWE-ID:
Exploit availability:
DescriptionThe vulnerability allows a remote attacker to bypass authentication on the target system.
The weakness exists in the systems using libpq or a libpq-based connection driver to perform password-based authentication methods due to insufficient security restrictions. A remote attacker can submit an empty password to disable password login and log in to the system.
Successful exploitation of the vulnerability may result in unauthorized access to the system and further attacks.
Install update from vendor's website.
Vulnerable software versionsRed Hat Enterprise Linux for x86_64: 6 - 7.3
Fixed software versionsCPE2.3 External links
http://access.redhat.com/errata/RHSA-2017:2678
Q & A
Can this vulnerability be exploited remotely?
Is there known malware, which exploits this vulnerability?
2) Information disclosure
EUVDB-ID: #VU7875
Risk: Low
CVSSv3.1:
CVE-ID: CVE-2017-7547
CWE-ID:
Exploit availability:
DescriptionThe vulnerability allows a remote authenticated attacker to obtain potentially sensitive information on the target system.
The weakness exists in the pg_user_mappings function due to insufficient security restrictions. A remote attacker can gain access to important data and conduct further attacks.
Install update from vendor's website.
Vulnerable software versionsRed Hat Enterprise Linux for x86_64: 6 - 7.3
Fixed software versionsCPE2.3 External links
http://access.redhat.com/errata/RHSA-2017:2678
Q & A
Can this vulnerability be exploited remotely?
Is there known malware, which exploits this vulnerability?
3) Denial of service
EUVDB-ID: #VU7874
Risk: Low
CVSSv3.1:
CVE-ID: CVE-2017-7548
CWE-ID:
Exploit availability:
DescriptionThe vulnerability allows a remote authenticated attacker to cause DoS condition on the target system.
The weakness exists due to an access control flaw in the lo_put() function to change the data in a large object. A remote attacker can cause the application to crash.
Install update from vendor's website.
Vulnerable software versionsRed Hat Enterprise Linux for x86_64: 6 - 7.3
Fixed software versionsCPE2.3 External links
http://access.redhat.com/errata/RHSA-2017:2678
Q & A
Can this vulnerability be exploited remotely?
Is there known malware, which exploits this vulnerability?
