CVE-2020-2756

NameCVE-2020-2756
DescriptionVulnerability in the Java SE, Java SE Embedded product of Oracle Java SE (component: Serialization). Supported versions that are affected are Java SE: 7u251, 8u241, 11.0.6 and 14; Java SE Embedded: 8u241. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Java SE, Java SE Embedded. Note: Applies to client and server deployment of Java. This vulnerability can be exploited through sandboxed Java Web Start applications and sandboxed Java applets. It can also be exploited by supplying data to APIs in the specified Component without using sandboxed Java Web Start applications or sandboxed Java applets, such as through a web service. CVSS 3.0 Base Score 3.7 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L).
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-2193-1, DSA-4662-1, DSA-4668-1
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
openjdk-11 (PTS)buster11.0.8+10-1~deb10u1fixed
buster (security)11.0.9+11-1~deb10u1fixed
bullseye, sid11.0.9+11-1fixed
openjdk-14 (PTS)bullseye, sid14.0.2+12-1.1fixed
openjdk-8 (PTS)stretch8u252-b09-1~deb9u1fixed
stretch (security)8u272-b10-0+deb9u1fixed
sid8u272-b10-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
openjdk-11sourcebuster11.0.7+10-3~deb10u1DSA-4662-1
openjdk-11source(unstable)11.0.7+10-1
openjdk-14source(unstable)14.0.1+7-1
openjdk-7sourcejessie7u261-2.6.22-1~deb8u1DLA-2193-1
openjdk-7source(unstable)(unfixed)
openjdk-8sourcestretch8u252-b09-1~deb9u1DSA-4668-1
openjdk-8source(unstable)8u252-b09-1

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