#VU18677 Race condition in gvfs - CVE-2019-12448

Vulnerability identifier: #VU18677

Vulnerability risk: High

CVSSv4.0: 7.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2019-12448

CWE-ID: CWE-362

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
gvfs
Client/Desktop applications / Other client software

Vendor: Gnome Development Team

Description

The vulnerability exists due to race conditions in the daemon/gvfsbackendadmin.c source code file because the admin backend does not implement the query_info_on_read/write functionality. A remote attacker can send a request with malicious input to the system and cause race condition that will allow to overwrite or access sensitive information or cause a DoS condition.

Mitigation

Vulnerable software versions

gvfs: 1.29.4 - 1.41.2

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External links
https://gitlab.gnome.org/GNOME/gvfs/commit/5cd76d627f4d1982b6e77a0e271ef9301732d09e

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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.