SB2018080215 - Segmentation fault in kamailio (Alpine package)
Published: August 2, 2018
Security Bulletin ID
SB2018080215
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Segmentation fault (CVE-ID: CVE-2018-14767)
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The vulnerability exists due to insufficient input validation in the "build_res_buf_from_sip_req" core function. A remote unauthenticated attacker can supply a specially crafted SIP message with a double "To" header and an empty "To" tag, trigger segmentation fault and cause the service to crash.
Successful exploitation of this vulnerability may also result in remote code execution.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=3f2220e3c4012726f874dd10ef5a91a4591a13c0
- https://git.alpinelinux.org/aports/commit/?id=c487afe0026fbde1285ae139f40f15454bf639a6
- https://git.alpinelinux.org/aports/commit/?id=0cd1e0ea9c3b80d05bac61b5bdedb1958f43fd83
- https://git.alpinelinux.org/aports/commit/?id=b8d672561f21adfd55fb489323944f289c8462fe
- https://git.alpinelinux.org/aports/commit/?id=c99d327ad04b2d81f1b67c64459c92abfebc56c2