CVE-2016-9939 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...
HighCVSS 7.5
EPSS 4.2%
- Published
- Updated
- Exploit status
- No public exploit known
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.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| debian/libcrypto++(Debian:12) | < 5.6.4-5 | 5.6.4-5 |
| debian/libcrypto++(Debian:13) | < 5.6.4-5 | 5.6.4-5 |
| debian/libcrypto++(Debian:14) | < 5.6.4-5 | 5.6.4-5 |
| cryptopp crypto++ | = 5.6.4 | No fix listed |
| debian linux | = 8.0 | No fix listed |
References
- Debian Security Tracker CVE-2016-9939 vendor-advisory
- DSA-3748 third-party-advisory vendor-advisory
- [oss-security] 20161212 Re: CVE Request: Potential DoS in Crypto++ ASN.1 parser mailing-list patch third-party-advisory
- 94854 third-party-advisory vdb-entry
- FEDORA-2019-812b77ed2e vendor-advisory
- bugs.debian.org issue-tracking