HIGH
clamav: heap-based buffer overflow in mspack/lzxd.c
Published Aug 7, 2017
7.8
HIGHCVSS 3.0
EPSS 1.98%
Description
mspack/lzxd.c in libmspack 0.5alpha, as used in ClamAV 0.99.2, allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted CHM file.
Affected products
No data.
AND
- 0.5
No data.
Red Hat Enterprise Linux 7
libmspack
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | libmspack | Will not fix | 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.
7.8 HIGH NVD
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
1 other source (Red Hat) ▾
6.5 MEDIUM Red Hat
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
6.8 MEDIUM NVD
AV:N/AC:M/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.98% 0.01976
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01976
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (20 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.98% (0.01976) | 79.75th | v5 (v2026.06.15) |
| Sep 22, 2026 | 1.98% (0.01976) | 79.60th | v5 (v2026.06.15) |
| Sep 21, 2026 | 3.45% (0.03448) | 88.48th | v5 (v2026.06.15) |
| Sep 6, 2026 | 1.98% (0.01976) | 79.17th | v5 (v2026.06.15) |
| Sep 5, 2026 | 3.45% (0.03448) | 88.23th | v5 (v2026.06.15) |
| Aug 30, 2026 | 1.98% (0.01976) | 79.06th | v5 (v2026.06.15) |
| Aug 28, 2026 | 3.45% (0.03448) | 88.16th | v5 (v2026.06.15) |
| Aug 24, 2026 | 1.98% (0.01976) | 78.95th | v5 (v2026.06.15) |
| Aug 23, 2026 | 3.45% (0.03448) | 88.11th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.98% (0.01976) | 77.83th | v5 (v2026.06.15) |
| Jan 14, 2026 | 2.12% (0.02123) | 83.69th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.62% (0.00621) | 68.28th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.92% (0.00919) | 83.58th | v3 (v2023.03.01) |
| Dec 22, 2023 | 0.91% (0.00909) | 81.00th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.64% (0.00642) | 76.63th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.45% (0.00453) | 71.27th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.26% (0.02262) | 50.78th | v5 (v2026.06.15) |
| Apr 14, 2021 | 2.26% (0.02262) | 0.00th | v1 |
Weaknesses (2)
References (10)
- http://www.debian.org/security/2017/dsa-3946 vendor-advisoryx_refsource_DEBIAN
- https://access.redhat.com/security/cve/CVE-2017-6419 Vendor Advisory
- https://bugzilla.clamav.net/show_bug.cgi?id=11701 x_refsource_MISCIssue Tracking
- https://bugzilla.redhat.com/show_bug.cgi?id=1483909 Issue Tracking
- https://github.com/varsleak/varsleak-vul/blob/master/clamav-vul/heap-overflow/clamav_chm_crash.md x_refsource_MISCThird Party Advisory
- https://github.com/vrtadmin/clamav-devel/commit/a83773682e856ad6529ba6db8d1792e6d515d7f1 x_refsource_MISCIssue TrackingPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/02/msg00014.html mailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2017-6419
- https://security.gentoo.org/glsa/201804-16 vendor-advisoryx_refsource_GENTOO
- https://www.cve.org/CVERecord?id=CVE-2017-6419
| Link | Providers | Tags |
|---|---|---|
| http://www.debian.org/security/2017/dsa-3946 | vendor-advisoryx_refsource_DEBIAN | |
| https://access.redhat.com/security/cve/CVE-2017-6419 | Vendor Advisory | |
| https://bugzilla.clamav.net/show_bug.cgi?id=11701 | x_refsource_MISCIssue Tracking | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1483909 | Issue Tracking | |
| https://github.com/varsleak/varsleak-vul/blob/master/clamav-vul/heap-overflow/clamav_chm_crash.md | x_refsource_MISCThird Party Advisory | |
| https://github.com/vrtadmin/clamav-devel/commit/a83773682e856ad6529ba6db8d1792e6d515d7f1 | x_refsource_MISCIssue TrackingPatchThird Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2018/02/msg00014.html | mailing-listx_refsource_MLIST | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-6419 | ||
| https://security.gentoo.org/glsa/201804-16 | vendor-advisoryx_refsource_GENTOO | |
| https://www.cve.org/CVERecord?id=CVE-2017-6419 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Aug 7, 2017
Updated Aug 5, 2024
Reserved Mar 1, 2017
Link CVE-2017-6419
CISA Vulnrichment
Updated n/a