SB2016062204 - Integer overflow in ssl3_get_client_hello() in openssl (Alpine package)
Published: June 22, 2016
Security Bulletin ID
SB2016062204
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Integer overflow in ssl3_get_client_hello() (CVE-ID: CVE-2016-2177)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause denial of service conditions on the target system.
The vulnerability exists due to a boundary error in ssl3_get_client_hello() function. A remote attacker can cause integer overflow by sending specially crafted data and crash the service.
Successful exploitation of this vulnerability may cause the target service to crash.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=be71850614d4346dc7cd2243591ca908f4475a1d
- https://git.alpinelinux.org/aports/commit/?id=38c6e1fd86f4d9cba4c146b8bdcd71f84e1a4ee7
- https://git.alpinelinux.org/aports/commit/?id=510da6cf43e86bf53a64a018de95bd1e1621aee1
- https://git.alpinelinux.org/aports/commit/?id=7d2ebac3c49c357dc1b35746dbd9c1bcbbcee2e0
- https://git.alpinelinux.org/aports/commit/?id=d8e0efebf3c84cd361bc21b86aa763b373e87620