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Vulnerability record · CVE-2012-4513 · published 11 November 2012

CVE-2012-4513: Kde memory buffer overflow vulnerability

Kde · Kde

khtml/imload/scaledimageplane.h in Konqueror in KDE 4.7.3 allows remote attackers to cause a denial of service (crash) and possibly read memory via large canvas dimensions, which leads to an unexpected sign extension and a heap-based buffer over-read.

6.4 CVSS 2.0 Medium EPSS 13% · top 3.9% CWE-119 · Memory buffer overflow
6.4CVSS 2.0 base score
13%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
20References, 2 tagged exploit
16 Jun 2026Last modified by NVD

Description

khtml/imload/scaledimageplane.h in Konqueror in KDE 4.7.3 allows remote attackers to cause a denial of service (crash) and possibly read memory via large canvas dimensions, which leads to an unexpected sign extension and a heap-based buffer over-read.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://archives.neohapsis.com/archives/bugtraq/2012-11/0005.html
http://quickgit.kde.org/index.php?p=kdelibs.git&a=commitdiff&h=1f8b1b034ccf1713a5d123a4c327290f86d17d53
http://rhn.redhat.com/errata/RHSA-2012-1416.html
http://rhn.redhat.com/errata/RHSA-2012-1418.html
http://secunia.com/advisories/51097 Vendor Advisory
http://secunia.com/advisories/51145 Vendor Advisory
http://www.nth-dimension.org.uk/pub/NDSA20121010.txt.asc Exploit
http://www.openwall.com/lists/oss-security/2012/10/11/11
http://www.openwall.com/lists/oss-security/2012/10/30/6
http://www.securitytracker.com/id?1027709
http://archives.neohapsis.com/archives/bugtraq/2012-11/0005.html
http://quickgit.kde.org/index.php?p=kdelibs.git&a=commitdiff&h=1f8b1b034ccf1713a5d123a4c327290f86d17d53
http://rhn.redhat.com/errata/RHSA-2012-1416.html
http://rhn.redhat.com/errata/RHSA-2012-1418.html
http://secunia.com/advisories/51097 Vendor Advisory
http://secunia.com/advisories/51145 Vendor Advisory
http://www.nth-dimension.org.uk/pub/NDSA20121010.txt.asc Exploit
http://www.openwall.com/lists/oss-security/2012/10/11/11
http://www.openwall.com/lists/oss-security/2012/10/30/6
http://www.securitytracker.com/id?1027709

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2012-4513), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.