SB2016012727 - Information disclosure in samba (Alpine package)

Description

This security bulletin contains information about 1 vulnerability.

1) Information disclosure (CVE-ID: CVE-2015-5299)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

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

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

The shadow_copy2_get_shadow_copy_data function in modules/vfs_shadow_copy2.c in Samba 3.x and 4.x before 4.1.22, 4.2.x before 4.2.7, and 4.3.x before 4.3.3 does not verify that the DIRECTORY_LIST access right has been granted, which allows remote attackers to access snapshots by visiting a shadow copy directory.

Remediation

Install update from vendor's website.

References

• https://git.alpinelinux.org/aports/commit/?id=2c8df8d5eb5c12b722deb30952b55b164fc7111a
• https://git.alpinelinux.org/aports/commit/?id=47affed1795cc5ca4cdd4625ea53ba85513f0636