Debian Security Advisory DSA 4157-1 (openssl - security update)

Information

Severity

Severity

Medium

Family

Family

Debian Local Security Checks

CVSSv2 Base

CVSSv2 Base

4.3

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:M/Au:N/C:P/I:N/A:N

Solution Type

Solution Type

Vendor Patch

Created

Created

4 years ago

Modified

Modified

3 years ago

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.

Common Vulnerabilities and Exposures (CVE)

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