MEDIUM
Integer underflow in the cli_scanpe function in pe.c in ClamAV before 0.97.8 allows remote attackers to cause a denial of service (crash) via a skewed offset larger than the size of the PE section in a UPX packed executable, which triggers an out-of-bounds read
Published May 13, 2013
5.0
MEDIUMCVSS 2.0
EPSS 3.55%
Description
Integer underflow in the cli_scanpe function in pe.c in ClamAV before 0.97.8 allows remote attackers to cause a denial of service (crash) via a skewed offset larger than the size of the PE section in a UPX packed executable, which triggers an out-of-bounds read.
Affected products
No data.
Configuration 1
OR
- 10.04
- 11.10
- 12.04
- 12.10
- 13.04
Configuration 2
OR
- 11.0
- 11.0
Configuration 3
OR
- ≤ 0.97.7
- 0.9
- 0.90
- 0.90
- 0.90
- 0.90
- 0.90
- 0.90.1
- 0.90.1_p0
- 0.90.2
- 0.90.2_p0
- 0.90.3
- 0.90.3_p0
- 0.90.3_p1
- 0.91
- 0.91
- 0.91
- 0.91.1
- 0.91.2
- 0.91.2_p0
- 0.92
- 0.92.1
- 0.92_p0
- 0.93
- 0.93.1
- 0.93.2
- 0.93.3
- 0.94
- 0.94.1
- 0.94.2
- 0.95
- 0.95
- 0.95
- 0.95
- 0.95
- 0.95.1
- 0.95.2
- 0.95.3
- 0.96
- 0.96
- 0.96
- 0.96.1
- 0.96.2
- 0.96.3
- 0.96.4
- 0.96.5
- 0.97
- 0.97
- 0.97.1
- 0.97.2
- 0.97.3
- 0.97.4
- 0.97.5
No data.
No Red Hat product state for this CVE.
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.
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
3.55% 0.03547
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.03547
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 (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.55% (0.03547) | 88.92th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.55% (0.03547) | 87.76th | v5 (v2026.06.15) |
| Dec 28, 2025 | 7.63% (0.07627) | 91.56th | v4 (v2025.03.14) |
| Dec 27, 2025 | 5.04% (0.05039) | 89.45th | v4 (v2025.03.14) |
| Dec 7, 2025 | 7.63% (0.07627) | 91.52th | v4 (v2025.03.14) |
| Oct 28, 2025 | 12.07% (0.12071) | 93.47th | v4 (v2025.03.14) |
| Oct 27, 2025 | 10.66% (0.10664) | 92.97th | v4 (v2025.03.14) |
| Oct 1, 2025 | 12.07% (0.12071) | 93.57th | v4 (v2025.03.14) |
| Jul 30, 2025 | 10.66% (0.10664) | 93.00th | v4 (v2025.03.14) |
| Mar 25, 2025 | 12.07% (0.12071) | 93.11th | v4 (v2025.03.14) |
| Mar 17, 2025 | 15.47% (0.15466) | 94.16th | v4 (v2025.03.14) |
| Dec 17, 2024 | 10.25% (0.10247) | 94.95th | v3 (v2023.03.01) |
| Mar 7, 2023 | 13.86% (0.13863) | 94.72th | v3 (v2023.03.01) |
| Mar 6, 2023 | 4.36% (0.04358) | 88.02th | v2 (v2022.01.01) |
| Apr 1, 2022 | 4.36% (0.04358) | 86.83th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.36% (0.04358) | 70.59th | v2 (v2022.01.01) |
Weaknesses (1)
References (21)
- http://blog.clamav.net/2013/04/clamav-0978-has-been-released.html x_refsource_CONFIRMPatch
- http://lists.apple.com/archives/security-announce/2013/Sep/msg00002.html vendor-advisoryx_refsource_APPLE
- http://lists.apple.com/archives/security-announce/2013/Sep/msg00004.html vendor-advisoryx_refsource_APPLE
- http://lists.fedoraproject.org/pipermail/package-announce/2013-June/109514.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2013-June/109639.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2013-June/109652.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105575.html vendor-advisoryx_refsource_FEDORA
- http://lists.opensuse.org/opensuse-security-announce/2014-12/msg00006.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2013-06/msg00018.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2013-06/msg00020.html vendor-advisoryx_refsource_SUSE
- http://secunia.com/advisories/53150 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/53182 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://support.apple.com/kb/HT5880 x_refsource_CONFIRM
- http://support.apple.com/kb/HT5892 x_refsource_CONFIRM
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:159 vendor-advisoryx_refsource_MANDRIVA
- http://www.openwall.com/lists/oss-security/2013/04/25/2 mailing-listx_refsource_MLIST
- http://www.openwall.com/lists/oss-security/2013/04/29/20 mailing-listx_refsource_MLIST
- http://www.securityfocus.com/bid/59434 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/USN-1816-1 vendor-advisoryx_refsource_UBUNTU
- https://bugzilla.clamav.net/show_bug.cgi?id=7055 x_refsource_CONFIRM
- https://github.com/vrtadmin/clamav-devel/commit/270e368b99e93aa5447d46c797c92c3f9f39f375 x_refsource_CONFIRM
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published May 13, 2013
Updated Aug 6, 2024
Reserved Feb 19, 2013
Link CVE-2013-2020
CISA Vulnrichment
Updated n/a