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Debian Security Advisory DSA 4157-1 (openssl - security update)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
Multiple vulnerabilities have been discovered in OpenSSL, a Secure Sockets Layer toolkit. The Common Vulnerabilities and Exposures project identifies the following issues: CVE-2017-3738 David Benjamin of Google reported an overflow bug in the AVX2 Montgomery multiplication procedure used in exponentiation with 1024-bit moduli. CVE-2018-0739 It was discovered that constructed ASN.1 types with a recursive definition could exceed the stack, potentially leading to a denial of service.
Affected Software
Affected Software
openssl on Debian Linux
Detection Method
Detection Method
This check tests the installed software version using the apt package manager.
Solution
Solution
For the oldstable distribution (jessie), these problems have been fixed in version 1.0.1t-1+deb8u8. The oldstable distribution is not affected by CVE-2017-3738 . For the stable distribution (stretch), these problems have been fixed in version 1.1.0f-3+deb9u2. We recommend that you upgrade your openssl packages. For the detailed security status of openssl please refer to its security tracker page linked in the references.