SB2016092238 - Denial of service in openssl (Alpine package)
Published: September 22, 2016
Security Bulletin ID
SB2016092238
CSH Severity
Low
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) Denial of service (CVE-ID: CVE-2016-6306)
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:Clear
The vulnerability allows a remote unauthenticated user to cause DoS conditions on the target system.
The weakess exists due insufficient length validation of certain TLS/SSL protocol handshake messages. By causing out-of-bounds read error attackers can trigger the affected service deny.
Successful exploitation of the vulnerability will result in denial of service on the vulnerable system.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=4a8e032821bd6376b9019298b0bea706aa7dd8d4
- https://git.alpinelinux.org/aports/commit/?id=c57b41c34309ede6b832e2edc306f6ab14a5d78c
- https://git.alpinelinux.org/aports/commit/?id=3a3ffbd8e2b0a4b3e1b8fcf62f913a691bb4dae4
- https://git.alpinelinux.org/aports/commit/?id=3cd2cd34c2859d94c7cfa8bfd46c5ac71b26893e
- https://git.alpinelinux.org/aports/commit/?id=7cfa29eeb94474b3bf44e4be19b4e2263ac6b479
- https://git.alpinelinux.org/aports/commit/?id=a38f0ddf93adc4fd2f8255cbd1c94ab704b007ac