SB2019091658 - NULL pointer dereference in asterisk (Alpine package)
Published: September 16, 2019
Security Bulletin ID
SB2019091658
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2019-15297)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote authenticated user to perform a denial of service (DoS) attack.
res_pjsip_t38 in Sangoma Asterisk 13.21-cert4, 15.7.3, and 16.5.0 allows an attacker to trigger a crash by sending a declined stream in a response to a T.38 re-invite initiated by Asterisk.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=fd0aefe7beb083e683ebb7f904469d01e2b71f16
- https://git.alpinelinux.org/aports/commit/?id=b8ed9736efcaee1cfb71d1c71773d8e62ee169d8
- https://git.alpinelinux.org/aports/commit/?id=de555bb30f216410e565ff8c6e8983703d16d648
- https://git.alpinelinux.org/aports/commit/?id=3037ceeb75de0f253b86db6e56d7e28eeb95cbf6
- https://git.alpinelinux.org/aports/commit/?id=d4f71b2cd087e99656c7404cd15985a5f5162472