CVE-2013-6630

CVE-2013-6630 is a medium-severity vulnerability in Google Chrome with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-189.

Key facts

• Severity: Medium (CVSS 2.0 base score 5.0)
• EPSS exploit prediction: 2% (80th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-189
• Affected product: Google Chrome
• Published: 2013-11-19
• Last modified: 2026-06-17

Description

The get_dht function in jdmarker.c in libjpeg-turbo through 1.3.0, as used in Google Chrome before 31.0.1650.48 and other products, does not set all elements of a certain Huffman value array during the reading of segments that follow Define Huffman Table (DHT) JPEG markers, which allows remote attackers to obtain sensitive information from uninitialized memory locations via a crafted JPEG image.

Frequently asked questions

What is CVE-2013-6630?

The get_dht function in jdmarker.c in libjpeg-turbo through 1.3.0, as used in Google Chrome before 31.0.1650.48 and other products, does not set all elements of a certain Huffman value array during the reading of segments that follow Define Huffman Table (DHT) JPEG markers, which allows remote attackers to obtain sensitive information from uninitialized memory locations via a crafted JPEG image.

How severe is CVE-2013-6630?

CVE-2013-6630 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2013-6630 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-6630?

CVE-2013-6630 primarily affects Google Chrome. In total, 44 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-6630?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2013-6630 published?

CVE-2013-6630 was published on 2013-11-19 and last updated on 2026-06-17.

References

• http://advisories.mageia.org/MGASA-2013-0333.html
• http://archives.neohapsis.com/archives/fulldisclosure/2013-11/0080.html
• http://git.chromium.org/gitweb/?p=chromium/deps/libjpeg_turbo.git%3Ba=commit%3Bh=32cab49bd4cb1ce069a435fd75f9439c34ddc6f8
• http://googlechromereleases.blogspot.com/2013/11/stable-channel-update.html
• http://lists.fedoraproject.org/pipermail/package-announce/2013-December/123437.html
• http://lists.fedoraproject.org/pipermail/package-announce/2013-December/124108.html
• http://lists.fedoraproject.org/pipermail/package-announce/2013-December/124257.html
• http://lists.fedoraproject.org/pipermail/package-announce/2014-January/125470.html
• http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00025.html
• http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00026.html
• http://lists.opensuse.org/opensuse-security-announce/2013-12/msg00002.html
• http://lists.opensuse.org/opensuse-updates/2013-12/msg00085.html
• http://lists.opensuse.org/opensuse-updates/2013-12/msg00086.html
• http://lists.opensuse.org/opensuse-updates/2013-12/msg00087.html
• http://lists.opensuse.org/opensuse-updates/2013-12/msg00119.html
• http://lists.opensuse.org/opensuse-updates/2013-12/msg00120.html
• http://lists.opensuse.org/opensuse-updates/2013-12/msg00121.html
• http://lists.opensuse.org/opensuse-updates/2014-01/msg00002.html
• http://lists.opensuse.org/opensuse-updates/2014-01/msg00042.html
• http://rhn.redhat.com/errata/RHSA-2013-1803.html
• http://secunia.com/advisories/56175
• http://www.debian.org/security/2013/dsa-2799
• http://www.mandriva.com/security/advisories?name=MDVSA-2013:273
• http://www.mozilla.org/security/announce/2013/mfsa2013-116.html
• http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
• http://www.securitytracker.com/id/1029470
• http://www.securitytracker.com/id/1029476
• http://www.ubuntu.com/usn/USN-2052-1
• http://www.ubuntu.com/usn/USN-2053-1
• http://www.ubuntu.com/usn/USN-2060-1

Affected products (44)

• cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.0:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.2:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.3:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.4:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.5:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.6:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.7:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.8:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.9:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.10:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.11:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.12:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.13:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.14:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.15:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.16:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.17:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.18:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.19:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.20:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.22:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.23:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.25:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.26:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.27:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.28:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.29:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.30:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.31:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.32:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.33:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.34:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.35:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.36:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.37:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.38:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.39:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.41:*:*:*:*:*:*:*
• cpe:2.3:a:google:chrome:31.0.1650.42:*:*:*:*:*:*:*

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