`CVE-2016-5547`

5.3 Medium Protected by RASP

Description

Vulnerability in the Java SE, Java SE Embedded, JRockit component of Oracle Java SE (subcomponent: Libraries). Supported versions that are affected are Java SE: 7u121 and 8u112; Java SE Embedded: 8u111; JRockit: R28.3.12. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded, JRockit. 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, JRockit. 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 v3.0 Base Score 5.3 (Availability impacts).

Exploitation Status

No public exploit

Nothing published shows this CVE being exploited, which is not the same as ruling it out. nothing published in 9 years.

CVSS E:U

CISA KEV not listed
CISA Vulnrichment exploitation: none
Indexed PoC none indexed
EPSS 3.5% chance in 30 days

Waratek Defense Posture

Protected by RASP

A Waratek agent blocks this today.

Applicable rule: CVE has an ARMR patch rule that provides mitigation

Protection full a patch rule written for this CVE
Action available patch rule
Review human armr-file
Record active

Decided by armr-patch-file : An ARMR patch file on disk for this CVE

Finding CVE has an ARMR patch rule that provides mitigation

Decided by	`armr-patch-file` : An ARMR patch file on disk for this CVE
Finding	CVE has an ARMR patch rule that provides mitigation

ARMR rule files

1 file

Shipped files covering this CVE. A CVE genuinely takes more than one: separate Maven artifacts hooking different parser classes, the same patch built for two ARMR versions, or a fix at both the framework and the container.

vcpu/2017/Q1-January/CVE-2016-5547/patch/2.6/CVE-2016-5547.armr patch rule added 2020-06-26 updated 2026-03-04

app("2017 JANUARY CPU"):
    requires(version: "ARMR/2.6")

    /***************************************************************************
        CVE-2016-5547 (2017 JANUARY CPU)

        CVSS 3.0 Summary:
            Base Score              | 5.3 MEDIUM
            Attack Vector           | Network
            Attack Complexity       | Low
            Privileges Required     | None
            User Interaction        | None
            Scope                   | Unchanged
            Confidentiality Impact  | None
            Integrity Impact        | None
            Availability Impact     | Low

        Description:
            It was discovered that the Libraries component of OpenJDK did not
            validate the length of the object identifier read from the DER input
            before allocating memory to store the OID. An attacker able to make
            a Java application decode a specially crafted DER input could cause
            the application to consume an excessive amount of memory.

        Resources:
            https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-5547
            hg diff -c 12ae26801105 (jdk7)

        Affected Versions:
            7u121, 8u112, JRockit R28.3.12

        Tested Versions:
            7u0 - 7u121
            8u0 - 8u112

        Protection Provided:
            Functional

        Patch Version:
            1.0
    ***************************************************************************/

    patch("CVE-2016-5547 :01"):
        function("sun/security/util/ObjectIdentifier.<init>(Lsun/security/util/DerInputStream;)V",
            checksums: ["30bdc58e75"])  // 7u0 - 7u121, 8u0 - 8u112
        callreturn("sun/security/util/DerInputStream.getLength()I")

        code(language: java,   import: ["sun.security.util.DerInputStream",
                                        "java.io.IOException"]):
            public void patch(JavaFrame frame) {
                DerInputStream derInputStream = (DerInputStream) frame.loadObjectVariable(1);
                int len = (int) frame.loadIntOperand(0);
                int available = derInputStream.available();

                if (len > available) {
                    frame.raiseException(
                        new IOException("ObjectIdentifier() -- length exceeds " +
                            "data available. Length: " + len + ", Available: " + available));
                }
            }
        endcode
    endpatch

endapp

CVSS

5.3 MEDIUM v3.0 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L 2 metrics

VRT selects the newest version's highest entry and publishes it as cvssScore, newest rather than largest because scores are not comparable across versions, and highest rather than first because the first entry is frequently a CNA placeholder scoring 0.0 over NVD's own analysis.

Version Score Band Vector Assigner Type

CVSS 3.0 5.3 MEDIUM CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L NVD Primary published

CVSS 2.0 5.0 no band published AV:N/AC:L/Au:N/C:N/I:N/A:P NVD Primary

Version	Score	Band	Vector	Assigner	Type
CVSS 3.0	5.3	MEDIUM	`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L`	NVD	Primary	published
CVSS 2.0	5.0	no band published	`AV:N/AC:L/Au:N/C:N/I:N/A:P`	NVD	Primary

Affected Software & Releases

🏛️ Oracle CPU Advisories & Products

Advisory	Type	Quarter	Products Oracle named in risk matrix
Oracle Critical Patch Update January 2017 ↗	CPU	2017-Q1	Oracle Java SE / Java SE, Java SE Embedded, JRockit (Java SE: 7u121, 8u112; Java SE Embedded: 8u111; JRockit: R28.3.12)

Advisory

Type

Quarter

Products Oracle named in risk matrix

Oracle Critical Patch Update January 2017 ↗

CPU

2017-Q1

Oracle Java SE / Java SE, Java SE Embedded, JRockit (Java SE: 7u121, 8u112; Java SE Embedded: 8u111; JRockit: R28.3.12)

Indexed Oracle Components & Versions

Family	Component	Oracle's version cell (verbatim)	Indexed as
Oracle Java SE	Java SE, Java SE Embedded, JRockit	Java SE: 7u121, 8u112; Java SE Embedded: 8u111; JRockit: R28.3.12	7.0.121.0 · 8.0.111.0 · 8.0.112.0

Family

Component

Oracle's version cell (verbatim)

Indexed as

Oracle Java SE

Java SE, Java SE Embedded, JRockit

Java SE: 7u121, 8u112; Java SE Embedded: 8u111; JRockit: R28.3.12

7.0.121.0 · 8.0.111.0 · 8.0.112.0

🖥️ Product CPEs & Version Ranges

3 product(s) over 7 version claims (uncapped)

Source	Vendor	Product	Scheme	Affected Versions
nvd	oracle	jdk	javase	1.7:update_121 · 1.8:update_111 · 1.8:update_112
nvd	oracle	jre	javase	1.7:update_121 · 1.8:update_111 · 1.8:update_112
nvd	oracle	jrockit	generic	r28.3.12

Source

Vendor

Product

Scheme

Affected Versions

nvd

oracle

jdk

javase

1.7:update_121 · 1.8:update_111 · 1.8:update_112

nvd

oracle

jre

javase

1.7:update_121 · 1.8:update_111 · 1.8:update_112

nvd

oracle

jrockit

generic

r28.3.12

References

URL	Tags
https://access.redhat.com/errata/RHSA-2017:0175	ADVISORY, RHSA-2017:0175
https://access.redhat.com/security/cve/CVE-2016-5547	REPORT, RHSA-2017:0175
https://access.redhat.com/errata/RHSA-2017:0180	ADVISORY, RHSA-2017:0180
https://access.redhat.com/errata/RHSA-2017:0263	ADVISORY, RHSA-2017:0263
https://access.redhat.com/errata/RHSA-2017:0269	ADVISORY, RHSA-2017:0269
http://rhn.redhat.com/errata/RHSA-2017-0175.html
http://rhn.redhat.com/errata/RHSA-2017-0176.html
http://rhn.redhat.com/errata/RHSA-2017-0180.html
http://rhn.redhat.com/errata/RHSA-2017-0263.html
http://rhn.redhat.com/errata/RHSA-2017-0269.html

URL

Timeline

Published 2017-01-27 Last modified 2026-06-17

Published	2017-01-27	By the CVE Program.
ARMR remediation created	2020-06-26	Earliest commit adding this CVE's ARMR patch or security rule.
ARMR remediation last updated	2026-03-04	Most recent commit touching this CVE's ARMR patch or security rule.
Last VRT activity	2026-03-04	Most recent commit touching this CVE's classification, patch or rule file.
NVD record modified	2026-06-17	NVD's own last-modified date for this record.

Published

2017-01-27

By the CVE Program.

ARMR remediation created

2020-06-26

Earliest commit adding this CVE's ARMR patch or security rule.

ARMR remediation last updated

2026-03-04

Most recent commit touching this CVE's ARMR patch or security rule.

Last VRT activity

2026-03-04

Most recent commit touching this CVE's classification, patch or rule file.

NVD record modified

2026-06-17

NVD's own last-modified date for this record.

Pipeline policy audit (2 of 21 rules evaluated)

2 of 21 rules ran. The rest were never reached, because an earlier stage settled the CVE, a distinct claim from a rule that ran and found nothing.

# Rule Outcome Status Detail

identity: Does this identifier describe a vulnerability at all? first match wins

1 rejected no-match CVE Program withdrawal of this identifier

scope: Is the vulnerability ARMR's to address? first match wins

2 armr-patch-file decided it matched Protected by RASP ARMR patch file exists for this CVE

3 armr-secure-rule-file not-reached An ARMR security-rule template on disk for this CVE

4 manual-classification not-reached A researcher's recorded decision for this specific CVE

5 manual classification not-reached Manual classification of this CVE in the legacy dataset

6 non-java-upstream not-reached A root cause in non-Java code: an OS kernel, a C library, or a bundled runtime

7 oracle-component not-reached The defect being in a component of a tracked product the agent does not reach: JavaFX, the Java SE installer, the native WebLogic proxy plug-in. Oracle gives these no CPE of their own and names them only in the description.

8 osv-maven not-reached An OSV.dev record of this CVE affecting a package published to Maven Central

9 cna-maven-package not-reached An affected Maven artifact named by the CNA itself

10 known-cpe-product not-reached An NVD CPE naming a product ARMR tracks

11 cna-cpe-product not-reached A CPE the CNA published naming a tracked product. Oracle publishes these on advisory day, months before NVD.

12 oracle-advisory-family not-reached A tracked product family named in Oracle's own risk matrix. CPE cannot carry a suite name, only a module.

13 non-deployable-product not-reached The only affected product being a sealed appliance image, where Java runs but no -javaagent can be attached

14 unmatched-product not-reached No tracked product matched above, and none present at all

disposition: What do we do about one that is? cumulative: every rule gets a turn

15 patch-hint not-reached A reference pointing at the upstream fix: a commit, a PR, a Red Hat bug

16 open-source-maven not-reached The affected package being open source on Maven, so the fix can be read

17 poc-derivable not-reached An indexed exploit to reverse-engineer, where there is no source to read

18 no-exploit not-reached With no fix path, a public exploit, or a CISA record of one

19 secure-rule-match not-reached A vulnerability class already blocked by an ARMR security rule

20 below-action-threshold not-reached Medium or Low severity, no KEV listing, no PoC clearing the evidence bar, no CISA verdict, no Oracle advisory

21 no-exploit-published not-reached A published working exploit for this candidate, not only a proof of concept, a forecast, or nothing at all

Raw stored JSON document for this CVE ↗ · NVD ↗ · CVE.org ↗