CVE-2016-9939

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

Crypto++ (aka cryptopp and libcrypto++) 5.6.4 contained a bug in its ASN.1 BER decoding routine. The library will allocate a memory block based on the length field of the ASN.1 object. If there is not enough content octets in the ASN.1 object, then the function will fail and the memory block will be zeroed even if its unused. There is a noticeable delay during the wipe for a large allocation.

Metrics

CVSS 3.0 7.5/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-20

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://www.debian.org/security/2016/dsa-3748Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/12/12/7Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/94854Third Party Advisory, VDB Entry
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7IL5A6465IEPW5GAWGXB2ENJPFYVWTJM/
http://www.debian.org/security/2016/dsa-3748Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/12/12/7Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/94854Third Party Advisory, VDB Entry
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7IL5A6465IEPW5GAWGXB2ENJPFYVWTJM/

Timeline

Published: Jan 30, 2017
Last modified: Jun 17, 2026
NVD status: Modified

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