[SECURITY] [DLA 449-1] botan1.10 security update
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Package : botan1.10
Version : 1.10.5-1+deb7u1
CVE ID : CVE-2014-9742 CVE-2015-5726 CVE-2015-5727
CVE-2015-7827 CVE-2016-2194 CVE-2016-2195
Several security vulnerabilities were found in botan1.10, a C++
library which provides support for many common cryptographic
operations, including encryption, authentication, X.509v3 certificates
A bug in Miller-Rabin primality testing was responsible for
The BER decoder would crash due to reading from offset 0 of an
empty vector if it encountered a BIT STRING which did not contain
any data at all. This can be used to easily crash applications
reading untrusted ASN.1 data, but does not seem exploitable for
The BER decoder would allocate a fairly arbitrary amount of memory
in a length field, even if there was no chance the read request
would succeed. This might cause the process to run out of memory or
invoke the OOM killer.
Use constant time PKCS #1 unpadding to avoid possible side channel
attack against RSA decryption
Infinite loop in modular square root algorithm.
The ressol function implementing the Tonelli-Shanks algorithm for
finding square roots could be sent into a nearly infinite loop due
to a misplaced conditional check. This could occur if a composite
modulus is provided, as this algorithm is only defined for primes.
This function is exposed to attacker controlled input via the
OS2ECP function during ECC point decompression.
Fix Heap overflow on invalid ECC point.
Use constant time modular inverse algorithm to avoid possible
side channel attack against ECDSA
For Debian 7 "Wheezy", these problems have been fixed in version
We recommend that you upgrade your botan1.10 packages.
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