Amazon Linux 1 Security Advisory: ALAS-2016-695
Advisory Release Date: 2016-05-03 10:30 Pacific
Advisory Updated Date: 2016-05-03 10:30 Pacific
FAQs regarding Amazon Linux ALAS/CVE Severity
A vulnerability was discovered that allows a man-in-the-middle attacker to use a padding oracle attack to decrypt traffic on a connection using an AES CBC cipher with a server supporting AES-NI. (CVE-2016-2107, Important)
It was discovered that the ASN.1 parser can misinterpret a large universal tag as a negative value. If an application deserializes and later reserializes untrusted ASN.1 structures containing an ANY field, an attacker may be able to trigger an out-of-bounds write, which can cause potentially exploitable memory corruption. (CVE-2016-2108, Important)
An overflow bug was discovered in the EVP_EncodeUpdate() function. An attacker could supply very large amounts of input data to overflow a length check, resulting in heap corruption. (CVE-2016-2105, Low)
An overflow bug was discovered in the EVP_EncryptUpdate() function. An attacker could supply very large amounts of input data to overflow a length check, resulting in heap corruption. (CVE-2016-2106, Low)
An issue was discovered in the BIO functions, such as d2i_CMS_bio(), where a short invalid encoding in ASN.1 data can cause allocation of large amounts of memory, potentially resulting in a denial of service. (CVE-2016-2109, Low)
Affected Packages:
openssl
Issue Correction:
Run yum update openssl to update your system.
i686:
openssl-static-1.0.1k-14.91.amzn1.i686
openssl-1.0.1k-14.91.amzn1.i686
openssl-perl-1.0.1k-14.91.amzn1.i686
openssl-devel-1.0.1k-14.91.amzn1.i686
openssl-debuginfo-1.0.1k-14.91.amzn1.i686
src:
openssl-1.0.1k-14.91.amzn1.src
x86_64:
openssl-perl-1.0.1k-14.91.amzn1.x86_64
openssl-devel-1.0.1k-14.91.amzn1.x86_64
openssl-debuginfo-1.0.1k-14.91.amzn1.x86_64
openssl-static-1.0.1k-14.91.amzn1.x86_64
openssl-1.0.1k-14.91.amzn1.x86_64