SUSE-SU-2017:1222-1: moderate: Security update for Botan
sle-updates at lists.suse.com
sle-updates at lists.suse.com
Tue May 9 10:10:19 MDT 2017
SUSE Security Update: Security update for Botan
Announcement ID: SUSE-SU-2017:1222-1
References: #1013209 #1033605 #965620 #965621 #968025
#968026 #968030 #974521 #977420
Cross-References: CVE-2014-9742 CVE-2015-5726 CVE-2015-5727
CVE-2015-7827 CVE-2016-2194 CVE-2016-2195
CVE-2016-2849 CVE-2016-9132 CVE-2017-2801
SUSE Linux Enterprise Software Development Kit 12-SP2
SUSE Linux Enterprise Software Development Kit 12-SP1
An update that fixes 9 vulnerabilities is now available.
This update for Botan to version 1.10.9 fixes the following issues:
These security issues were fixed:
- CVE-2015-5726: The BER decoder in Botan 0.10.x allowed remote attackers
to cause a denial of service (application crash) via an empty BIT STRING
in ASN.1 data (bsc#968025).
- CVE-2015-5727: The BER decoder in Botan 1.10.x allowed remote attackers
to cause a denial of service (memory consumption) via unspecified
vectors, related to a length field (bsc#968026).
- CVE-2015-7827: Botan make it easier for remote attackers to conduct
million-message attacks by measuring time differences, related to
decoding of PKCS#1 padding (bsc#968030).
- CVE-2016-2849: Botan do not use a constant-time algorithm to perform a
modular inverse on the signature nonce k, which might allowed remote
attackers to obtain ECDSA secret keys via a timing side-channel attack
- CVE-2016-9132: In Botan 1.8.0 when decoding BER data an integer overflow
could occur, which would cause an incorrect length field to be computed.
Some API callers may use the returned (incorrect and attacker
controlled) length field in a way which later caused memory corruption
or other failure (bsc#1013209).
- CVE-2016-2194: The ressol function in Botan allowed remote attackers to
cause a denial of service (infinite loop) via unspecified input to the
OS2ECP function, related to a composite modulus (bsc#965621).
- CVE-2016-2195: Integer overflow in the PointGFp constructor in Botan
allowed remote attackers to overwrite memory and possibly execute
arbitrary code via a crafted ECC point, which triggers a heap-based
buffer overflow (bsc#965620).
- CVE-2017-2801: Incorrect comparison in X.509 DN strings (bsc#1033605).
- CVE-2014-9742: The Miller-Rabin primality check in Botan improperly used
a single random base, which made it easier for remote attackers to
defeat cryptographic protection mechanisms via a DH group (bsc#974521).
These non-security issues were fixed:
- Fixed EAX tag verification to run in constant time
- The default TLS policy now disables SSLv3.
- A crash could have occured when reading from a blocking random device if
the device initially indicated that entropy was available but a
concurrent process drained the entropy pool before the read was
- Fixed decoding indefinite length BER constructs that contain a context
sensitive tag of zero.
- The key length limit on HMAC has been raised to 512 bytes, allowing the
of very long passphrases with PBKDF2.
- OAEP had two bugs, one of which allowed it to be used even if the key
was too small, and the other of which would cause a crash during
decryption if the EME data was too large for the associated key.
To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product:
- SUSE Linux Enterprise Software Development Kit 12-SP2:
zypper in -t patch SUSE-SLE-SDK-12-SP2-2017-723=1
- SUSE Linux Enterprise Software Development Kit 12-SP1:
zypper in -t patch SUSE-SLE-SDK-12-SP1-2017-723=1
To bring your system up-to-date, use "zypper patch".
- SUSE Linux Enterprise Software Development Kit 12-SP2 (aarch64 ppc64le s390x x86_64):
- SUSE Linux Enterprise Software Development Kit 12-SP1 (ppc64le s390x x86_64):
More information about the sle-updates