The ClamAV AntiVirus software versions 0.99.2 and prior contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device
Published Jan 26, 2018
7.5
HIGHCVSS 3.0
EPSS 4.98%
Description
The ClamAV AntiVirus software versions 0.99.2 and prior contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a lack of input validation checking mechanisms during certain mail parsing operations (mbox.c operations on bounce messages). If successfully exploited, the ClamAV software could allow a variable pointing to the mail body which could cause a used after being free (use-after-free) instance which may lead to a disruption of services on an affected device to include a denial of service condition.
Affected products
- Vendor n/a Product ClamAV AntiVirus software versions 0.99.2 and prior Defaultn/a
- Version ClamAV AntiVirus software versions 0.99.2 and priorStatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | ClamAV AntiVirus software versions 0.99.2 and prior | n/a |
|
Configuration 1
- 7.0
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.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AV:N/AC:L/Au:N/C:N/I:N/A:C
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
YesTechnical Impact
PartialDecision
n/aAssessed Dec 2, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (22 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.98% (0.04982) | 91.94th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.08% (0.05076) | 91.21th | v5 (v2026.06.15) |
| Mar 29, 2026 | 7.33% (0.07329) | 91.65th | v4 (v2025.03.14) |
| Dec 25, 2025 | 4.84% (0.04838) | 89.18th | v4 (v2025.03.14) |
| Nov 18, 2025 | 6.67% (0.06670) | 90.30th | v4 (v2025.03.14) |
| Oct 10, 2025 | 8.27% (0.08266) | 91.81th | v4 (v2025.03.14) |
| Jun 12, 2025 | 7.13% (0.07127) | 91.05th | v4 (v2025.03.14) |
| Mar 30, 2025 | 5.54% (0.05538) | 89.30th | v4 (v2025.03.14) |
| Mar 29, 2025 | 10.12% (0.10116) | 88.41th | v4 (v2025.03.14) |
| Mar 17, 2025 | 5.25% (0.05246) | 89.26th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.91% (0.00909) | 83.48th | v3 (v2023.03.01) |
| Apr 2, 2024 | 0.91% (0.00909) | 82.45th | v3 (v2023.03.01) |
| May 8, 2023 | 0.91% (0.00909) | 80.44th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.00% (0.01004) | 81.33th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.94% (0.01943) | 48.45th | v1 |
| Jan 6, 2022 | 1.94% (0.01943) | 47.92th | v1 |
| Sep 1, 2021 | 1.94% (0.01943) | 76.51th | v1 |
| Apr 14, 2021 | 1.94% (0.01943) | 0.00th | v1 |
References (5)
- http://blog.clamav.net/2018/01/clamav-0993-has-been-released.html x_refsource_CONFIRMRelease NotesVendor Advisory
- https://bugzilla.clamav.net/show_bug.cgi?id=11939 x_refsource_CONFIRMExploitIssue TrackingPatchVendor Advisory
- https://lists.debian.org/debian-lts-announce/2018/01/msg00035.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://usn.ubuntu.com/3550-1/ vendor-advisoryx_refsource_UBUNTU
- https://usn.ubuntu.com/3550-2/ vendor-advisoryx_refsource_UBUNTU
| Link | Providers | Tags |
|---|---|---|
| http://blog.clamav.net/2018/01/clamav-0993-has-been-released.html | x_refsource_CONFIRMRelease NotesVendor Advisory | |
| https://bugzilla.clamav.net/show_bug.cgi?id=11939 | x_refsource_CONFIRMExploitIssue TrackingPatchVendor Advisory | |
| https://lists.debian.org/debian-lts-announce/2018/01/msg00035.html | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://usn.ubuntu.com/3550-1/ | vendor-advisoryx_refsource_UBUNTU | |
| https://usn.ubuntu.com/3550-2/ | vendor-advisoryx_refsource_UBUNTU |
Change history (0)
No recorded changes yet.