CVE-2012-2739

Severity

50%

Complexity

99%

Confidentiality

48%

Oracle Java SE before 7 Update 6, and OpenJDK 7 before 7u6 build 12 and 8 before build 39, computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table.

Oracle Java SE before 7 Update 6, and OpenJDK 7 before 7u6 build 12 and 8 before build 39, computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table.

CVSS 2.0 Base Score 5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P).

Overview

Type

Oracle

First reported 12 years ago

2012-11-28 13:03:00

Last updated 12 years ago

2012-11-28 13:03:00

Affected Software

Oracle JDK 1.7.0

1.7.0

Oracle JDK 1.7.0 update1

1.7.0

Oracle JDK 1.7.0 update2

1.7.0

Oracle JDK 1.7.0 update3

1.7.0

Oracle JDK 1.7.0 Update 4

1.7.0

Oracle JRE 1.7.0

1.7.0

Oracle JRE 1.7.0 update1

1.7.0

Oracle JRE 1.7.0 update2

1.7.0

Oracle JRE 1.7.0 update3

1.7.0

Oracle JRE 1.7.0 Update 4

1.7.0

Oracle OpenJDK 1.6.0 (6)

1.6.0

Oracle OpenJDK -

Oracle OpenJDK 1.8.0 (8)

1.8.0

References

http://armoredbarista.blogspot.de/2012/02/investigating-hashdos-issue.html

Exploit

[core-libs-dev] 20120522 Review Request CR#7118743 : Alternative Hashing for String with Hash-based Maps

Vendor Advisory

VU#903934

US Government Resource

http://www.nruns.com/_downloads/advisory28122011.pdf

http://www.ocert.org/advisories/ocert-2011-003.html

[oss-security] 20120615 CVE request: java hashdos vulnerability

[oss-security] 20120616 Re: CVE request: java hashdos vulnerability

https://bugzilla.redhat.com/show_bug.cgi?id=750533

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