SB2013121008 - Heap-based buffer overflow in samba (Alpine package)

Description

This security bulletin contains information about 1 security vulnerability.

1) Heap-based buffer overflow (CVE-ID: CVE-2013-4408)

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

The vulnerability exists due to a boundary error in Heap-based buffer overflow in the dcerpc_read_ncacn_packet_done function in librpc/rpc/dcerpc_util.c in winbindd in Samba 3.x before 3.6.22, 4.0.x before 4.0.13, and 4.1.x before 4.1.3. A remote attacker can use an invalid fragment length in a DCE-RPC packet. to trigger heap-based buffer overflow and execute arbitrary code on the target system.

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

Remediation

Install update from vendor's website.

References

• https://git.alpinelinux.org/aports/commit/?id=62722265236fe9b456b06077a278c59167d698d0
• https://git.alpinelinux.org/aports/commit/?id=c814185629eb7f0e1166f5ba094e8402cefd1587
• https://git.alpinelinux.org/aports/commit/?id=34697bf099f0ece957068bf39dc6c622f5141bd0
• https://git.alpinelinux.org/aports/commit/?id=5d3b50a2026251615d9737322617519e8711a5de