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Debian DSA-4158-1 Critical: openssl1.0 DoS Due to ASN.1 Recursion

debian
Calendar Grey March 29, 2018
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Follow these steps to resolve ASN.1 type definitions vulnerability in OpenSSL 1.0 on your Debian system ensuring security and functionality are maintained
It was discovered that constructed ASN.1 types with a recursive definition could exceed the stack, potentially leading to a denial of service

Summary

Details can be found in the upstream advisory:
https://openssl-library.org/news/secadv/20180327.txt

For the stable distribution (stretch), this problem has been fixed in
version 1.0.2l-2+deb9u3.

We recommend that you upgrade your openssl1.0 packages.

For the detailed security status of openssl1.0 please refer to its
security tracker page at:

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/



Severity
critical
Lowest
Low
Medium
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Critical

Package: openssl1.0
CVE ID: CVE-2018-0739

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