Fedora 30 update for php-symfony



| Updated: 2025-04-25
Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2019-18888
CVE-2019-18887
CWE-ID CWE-78
CWE-697
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Fedora
Operating systems & Components / Operating system

php-symfony
Operating systems & Components / Operating system package or component

Vendor Fedoraproject

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) OS Command Injection

EUVDB-ID: #VU22852

Risk: Medium

CVSSv4.0: 6.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-18888

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.

The vulnerability exists in MimeTypeGuesser within the Symfony HttpFoundation component when parsing data passed via the $path variable. A remote attacker can with ability to upload files can execute arbitrary OS commands on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 30

php-symfony: before 2.8.52-1.fc30

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2019-9c2ad3b018


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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

2) Incorrect Comparison

EUVDB-ID: #VU22851

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-18887

CWE-ID: CWE-697 - Incorrect Comparison

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists within the HttpKernel component in Symfony when checking the signature of an URI (an ESI fragment URL for instance) due to the URISigner does not use a constant time string comparison function. A remote attacker can perform a timing attack and gain access to sensitive functionality.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 30

php-symfony: before 2.8.52-1.fc30

CPE2.3 External links

https://bodhi.fedoraproject.org/updates/FEDORA-2019-9c2ad3b018


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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



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