SB2016091925 - Input validation error in openssl (Alpine package)
Published: September 19, 2016
Security Bulletin ID
SB2016091925
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 security vulnerability.
1) Input validation error (CVE-ID: CVE-2016-0797)
The vulnerability allows remote attackers to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (heap memory corruption or NULL pointer dereference) or possibly have unspecified other impact via a long digit string that is mishandled by the (1) BN_dec2bn or (2) BN_hex2bn function, related to crypto/bn/bn.h and crypto/bn/bn_print.c.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=6ea715958d6486933e7cc3ca163e3d0691c9629d
- https://git.alpinelinux.org/aports/commit/?id=70b8770d37d514044077c7258c0e6e81aeeee5fe
- https://git.alpinelinux.org/aports/commit/?id=7b3b75b5c977b3a6fa91c6a48349d55fc7e31663
- https://git.alpinelinux.org/aports/commit/?id=346532027d2b8b8d5cac13a2b7d86820dfaf34b7