SB2016041115 - Heap-based buffer overflow in kamailio (Alpine package)

Description

This security bulletin contains information about 1 vulnerability.

1) Heap-based buffer overflow (CVE-ID: CVE-2016-2385)

CWE-ID: CWE-122 - Heap-based Buffer Overflow

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

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 encode_msg function in encode_msg.c in the SEAS module in Kamailio (formerly OpenSER and SER) before 4.3.5. A remote attacker can use a large SIP 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=92eaed8bff52f29142f93c446c6c10eb3ba2b4c6
• https://git.alpinelinux.org/aports/commit/?id=a9eea283365cdd1c9b50afb6e1df09fcb491471c
• https://git.alpinelinux.org/aports/commit/?id=cca8048cd7a194dbb3fc00bb0a378d78da4e205a