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Debian: Security Advisory for openssl (DSA-4661-1)

Information

Severity

Severity

Medium

Family

Family

Debian Local Security Checks

CVSSv2 Base

CVSSv2 Base

5.0

CVSSv2 Vector

CVSSv2 Vector

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

Solution Type

Solution Type

Vendor Patch

Created

Created

3 years ago

Modified

Modified

3 years ago

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.

Common Vulnerabilities and Exposures (CVE)