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Ubuntu: Security Advisory for openjdk-8 (USN-4257-1)

Information

Severity

Severity

Medium

Family

Family

Ubuntu Local Security Checks

CVSSv2 Base

CVSSv2 Base

6.8

CVSSv2 Vector

CVSSv2 Vector

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

Solution Type

Solution Type

Vendor Patch

Created

Created

4 years ago

Modified

Modified

4 years ago

Summary

The remote host is missing an update for the 'openjdk-8' package(s) announced via the USN-4257-1 advisory.

Insight

Insight

It was discovered that OpenJDK incorrectly handled exceptions during deserialization in BeanContextSupport. An attacker could possibly use this issue to cause a denial of service or other unspecified impact. (CVE-2020-2583) It was discovered that OpenJDK incorrectly validated properties of SASL messages included in Kerberos GSSAPI. An unauthenticated remote attacker with network access via Kerberos could possibly use this issue to insert, modify or obtain sensitive information. (CVE-2020-2590) It was discovered that OpenJDK incorrectly validated URLs. An attacker could possibly use this issue to insert, edit or obtain sensitive information. (CVE-2020-2593) It was discovered that OpenJDK Security component still used MD5 algorithm. A remote attacker could possibly use this issue to obtain sensitive information. (CVE-2020-2601) It was discovered that OpenJDK incorrectly handled the application of serialization filters. An attacker could possibly use this issue to bypass the intended filter during serialization. (CVE-2020-2604) Bo Zhang and Long Kuan discovered that OpenJDK incorrectly handled X.509 certificates. An attacker could possibly use this issue to cause a denial of service. (CVE-2020-2654) Bengt Jonsson, Juraj Somorovsky, Kostis Sagonas, Paul Fiterau Brostean and Robertdiscovered that OpenJDK incorrectly handled CertificateVerify TLS handshake messages. A remote attacker could possibly use this issue to insert, edit or obtain sensitive information. This issue only affected OpenJDK 11. (CVE-2020-2655) It was discovered that OpenJDK incorrectly enforced the limit of datagram sockets that can be created by a code running within a Java sandbox. An attacker could possibly use this issue to bypass the sandbox restrictions causing a denial of service. This issue only affected OpenJDK 8. (CVE-2020-2659)

Affected Software

Affected Software

'openjdk-8' package(s) on Ubuntu 19.10, Ubuntu 18.04 LTS, Ubuntu 16.04 LTS.

Detection Method

Detection Method

Checks if a vulnerable package version is present on the target host.

Solution

Solution

Please install the updated package(s).