kdelibs: Heap-based buffer over-read when calculating dimensions of the canvas within the scale loop
Published Nov 11, 2012
6.4
MEDIUMCVSS 2.0
EPSS 12.60%
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.
Affected products
No data.
No data.
Red Hat Enterprise Linux 6
kdelibs-6:4.3.4-14.el6_3.2
Fixed · RHSA-2012:1416
Red Hat Enterprise Linux Desktop (v. 6)
n/a
Fixed · RHSA-2012:1418
Red Hat Enterprise Linux HPC Node (v. 6)
n/a
Fixed · RHSA-2012:1418
Red Hat Enterprise Linux Server (v. 6)
n/a
Fixed · RHSA-2012:1418
Red Hat Enterprise Linux Workstation (v. 6)
n/a
Fixed · RHSA-2012:1418
Red Hat Enterprise Linux 5
kdelibs
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | kdelibs-6:4.3.4-14.el6_3.2 | Fixed | RHSA-2012:1416 |
| Red Hat Enterprise Linux Desktop (v. 6) | n/a | Fixed | RHSA-2012:1418 |
| Red Hat Enterprise Linux HPC Node (v. 6) | n/a | Fixed | RHSA-2012:1418 |
| Red Hat Enterprise Linux Server (v. 6) | n/a | Fixed | RHSA-2012:1418 |
| Red Hat Enterprise Linux Workstation (v. 6) | n/a | Fixed | RHSA-2012:1418 |
| Red Hat Enterprise Linux 5 | kdelibs | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 12.60% (0.12599) | 96.12th | v5 (v2026.06.15) |
| Jun 15, 2026 | 12.60% (0.12599) | 95.72th | v5 (v2026.06.15) |
| Nov 30, 2025 | 15.12% (0.15124) | 94.32th | v4 (v2025.03.14) |
| Mar 30, 2025 | 22.68% (0.22677) | 95.38th | v4 (v2025.03.14) |
| Mar 29, 2025 | 40.46% (0.40457) | 96.03th | v4 (v2025.03.14) |
| Mar 17, 2025 | 22.68% (0.22677) | 95.41th | v4 (v2025.03.14) |
| Dec 12, 2024 | 7.49% (0.07490) | 94.38th | v3 (v2023.03.01) |
| Apr 8, 2024 | 7.38% (0.07385) | 93.97th | v3 (v2023.03.01) |
| Jul 30, 2023 | 7.69% (0.07693) | 93.26th | v3 (v2023.03.01) |
| Mar 7, 2023 | 6.59% (0.06589) | 92.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.17% (0.02172) | 80.77th | v2 (v2022.01.01) |
| Feb 13, 2023 | 2.17% (0.02172) | 80.28th | v2 (v2022.01.01) |
| Feb 3, 2023 | 3.78% (0.03779) | 85.12th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.17% (0.02172) | 78.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.17% (0.02172) | 57.73th | v2 (v2022.01.01) |
References (14)
- http://archives.neohapsis.com/archives/bugtraq/2012-11/0005.html mailing-listx_refsource_BUGTRAQ
- http://quickgit.kde.org/index.php?p=kdelibs.git&a=commitdiff&h=1f8b1b034ccf1713a5d123a4c327290f86d17d53 x_refsource_CONFIRM
- http://rhn.redhat.com/errata/RHSA-2012-1416.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2012-1418.html vendor-advisoryx_refsource_REDHAT
- http://secunia.com/advisories/51097 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/51145 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.nth-dimension.org.uk/pub/NDSA20121010.txt.asc x_refsource_MISCExploit
- http://www.openwall.com/lists/oss-security/2012/10/11/11 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2012/10/30/6 mailing-listx_refsource_MLIST
- http://www.securitytracker.com/id?1027709 vdb-entryx_refsource_SECTRACK
- https://access.redhat.com/security/cve/CVE-2012-4513 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=865741 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2012-4513
- https://www.cve.org/CVERecord?id=CVE-2012-4513
Change history (0)
No recorded changes yet.