ID CVE-2015-5726 Type cve Reporter cve@mitre.org Modified 2016-05-16T14:47:00
Description
The BER decoder in Botan 0.10.x before 1.10.10 and 1.11.x before 1.11.19 allows remote attackers to cause a denial of service (application crash) via an empty BIT STRING in ASN.1 data.
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This can be used to easily crash applications\n reading untrusted ASN.1 data, but does not seem exploitable for\n code execution.\n\nCVE-2015-5727\n The BER decoder would allocate a fairly arbitrary amount of memory\n in a length field, even if there was no chance the read request\n would succeed. This might cause the process to run out of memory or\n invoke the OOM killer.\n\nCVE-2015-7827\n Use constant time PKCS #1 unpadding to avoid possible side channel\n attack against RSA decryption\n\nCVE-2016-2194\n Infinite loop in modular square root algorithm.\n The ressol function implementing the Tonelli-Shanks algorithm for\n finding square roots could be sent into a nearly infinite loop due\n to a misplaced conditional check. This could occur if a composite\n modulus is provided, as this algorithm is only defined for primes.\n This function is exposed to attacker controlled input via the\n OS2ECP function during ECC point decompression.\n\nCVE-2016-2195\n Fix Heap overflow on invalid ECC point.\n\nCVE-2016-2849\n Use constant time modular inverse algorithm to avoid possible\n side channel attack against ECDSA.\n\nFor the stable distribution (jessie), these problems have been fixed in\nversion 1.10.8-2+deb8u1.\n\nWe recommend that you upgrade your botan1.10 packages.\n\nFurther information about Debian Security Advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: https://www.debian.org/security/\n\nMailing list: debian-security-announce@lists.debian.org\n", "edition": 10, "modified": "2016-05-02T13:02:37", "published": "2016-05-02T13:02:37", "id": "DEBIAN:DSA-3565-1:4C8EB", "href": "https://lists.debian.org/debian-security-announce/debian-security-announce-2016/msg00141.html", "title": "[SECURITY] [DSA 3565-1] botan1.10 security update", "type": "debian", "cvss": {"score": 10.0, "vector": "AV:N/AC:L/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2019-05-30T02:21:20", "bulletinFamily": "unix", "cvelist": ["CVE-2015-7827", "CVE-2015-5727", "CVE-2016-2195", "CVE-2015-5726", "CVE-2016-2849", "CVE-2014-9742", "CVE-2016-2194"], "description": "Package : botan1.10\nVersion : 1.10.5-1+deb7u1\nCVE ID : CVE-2014-9742 CVE-2015-5726 CVE-2015-5727\n\t CVE-2015-7827 CVE-2016-2194 CVE-2016-2195\n\t\t CVE-2016-2849\n\nSeveral security vulnerabilities were found in botan1.10, a C++\nlibrary which provides support for many common cryptographic\noperations, including encryption, authentication, X.509v3 certificates\nand CRLs.\n\nCVE-2014-9742\n A bug in Miller-Rabin primality testing was responsible for\n insufficient randomness.\n\nCVE-2015-5726\n The BER decoder would crash due to reading from offset 0 of an\n empty vector if it encountered a BIT STRING which did not contain\n any data at all. This can be used to easily crash applications\n reading untrusted ASN.1 data, but does not seem exploitable for\n code execution.\n\nCVE-2015-5727\n The BER decoder would allocate a fairly arbitrary amount of memory\n in a length field, even if there was no chance the read request\n would succeed. This might cause the process to run out of memory or\n invoke the OOM killer.\n\nCVE-2015-7827\n Use constant time PKCS #1 unpadding to avoid possible side channel\n attack against RSA decryption\n\nCVE-2016-2194\n Infinite loop in modular square root algorithm.\n The ressol function implementing the Tonelli-Shanks algorithm for\n finding square roots could be sent into a nearly infinite loop due\n to a misplaced conditional check. This could occur if a composite\n modulus is provided, as this algorithm is only defined for primes.\n This function is exposed to attacker controlled input via the\n OS2ECP function during ECC point decompression.\n\nCVE-2016-2195\n Fix Heap overflow on invalid ECC point.\n\nCVE-2016-2849\n Use constant time modular inverse algorithm to avoid possible\n side channel attack against ECDSA\n\nFor Debian 7 "Wheezy", these problems have been fixed in version\n1.10.5-1+deb7u1.\n\nWe recommend that you upgrade your botan1.10 packages.\n\n", "edition": 3, "modified": "2016-04-30T11:48:43", "published": "2016-04-30T11:48:43", "id": "DEBIAN:DLA-449-1:098E6", "href": "https://lists.debian.org/debian-lts-announce/2016/debian-lts-announce-201604/msg00003.html", "title": "[SECURITY] [DLA 449-1] botan1.10 security update", "type": "debian", "cvss": {"score": 10.0, "vector": "AV:N/AC:L/Au:N/C:C/I:C/A:C"}}]}
