SB2016091931 - Denial of service in openssl (Alpine package)
Published: September 19, 2016 Updated: October 6, 2022
Security Bulletin ID
SB2016091931
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) Out-of-bounds read (CVE-ID: CVE-2016-6302)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to denial of service (DoS) attack.
The vulnerability exists due to a boundary condition when handling SHA512 TLS session tickets. A remote attacker can send specially crafted packets to the system, trigger an out-of-bounds read error and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=a879e6eaf315a19b45fd424f12f9bf072b168946
- https://git.alpinelinux.org/aports/commit/?id=346532027d2b8b8d5cac13a2b7d86820dfaf34b7
- https://git.alpinelinux.org/aports/commit/?id=6ea715958d6486933e7cc3ca163e3d0691c9629d
- https://git.alpinelinux.org/aports/commit/?id=70b8770d37d514044077c7258c0e6e81aeeee5fe