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Improper Input Validation Affecting libcrypto++ package, versions <5.6.4-5

Severity

 Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.81% (82nd percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-LIBCRYPTO-293596
  • published30 Jan 2017
  • disclosed30 Jan 2017
Report a new vulnerability Found a mistake?

Introduced: 30 Jan 2017

CVE-2016-9939  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Debian:unstable libcrypto++ to version 5.6.4-5 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libcrypto++ package and not the libcrypto++ package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

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.