Improper String Length Calculation Vulnerability in OpenSSL 1.0.1 and 1.0.2

CVE-2016-0799 · HIGH Severity

AV:N/AC:L/AU:N/C:C/I:C/A:C

The fmtstr function in crypto/bio/b_print.c in OpenSSL 1.0.1 before 1.0.1s and 1.0.2 before 1.0.2g improperly calculates string lengths, which allows remote attackers to cause a denial of service (overflow and out-of-bounds read) or possibly have unspecified other impact via a long string, as demonstrated by a large amount of ASN.1 data, a different vulnerability than CVE-2016-2842.

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