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Debian: Security Advisory for openssl (DSA-4661-1)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
The remote host is missing an update for the 'openssl' package(s) announced via the DSA-4661-1 advisory.
Insight
Insight
Bernd Edlinger discovered that malformed data passed to the SSL_check_chain() function during or after a TLS 1.3 handshake could cause a NULL dereference, resulting in denial of service. The oldstable distribution (stretch) is not affected.
Affected Software
Affected Software
'openssl' package(s) on Debian Linux.
Detection Method
Detection Method
Checks if a vulnerable package version is present on the target host.
Solution
Solution
For the stable distribution (buster), this problem has been fixed in version 1.1.1d-0+deb10u3. We recommend that you upgrade your openssl packages.