spice-client: Insufficient encoding checks for LZ can cause different integer/buffer overflows
Published Sep 11, 2018
8.8
HIGHCVSS 3.0
EPSS 2.36%
Description
Multiple integer overflow and buffer overflow issues were discovered in spice-client's handling of LZ compressed frames. A malicious server could cause the client to crash or, potentially, execute arbitrary code.
Affected products
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||
|---|---|---|---|---|---|---|
| Red Hat | Spice-Client | n/a |
|
- n/a
No data.
Red Hat Enterprise Linux 6
spice-gtk-0:0.26-8.el6_10.2
Fixed · RHSA-2020:0471
Red Hat Enterprise Linux 7
libgovirt-0:0.3.4-3.el7
Fixed · RHSA-2019:2229
Red Hat Enterprise Linux 7
spice-gtk-0:0.35-4.el7
Fixed · RHSA-2019:2229
Red Hat Enterprise Linux 7
spice-vdagent-0:0.14.0-18.el7
Fixed · RHSA-2019:2229
Red Hat Enterprise Linux 7
virt-viewer-0:5.0-15.el7
Fixed · RHSA-2019:2229
Red Hat Enterprise Linux 6
spice-client
Will not fix
Red Hat Enterprise Linux 8
spice-gtk
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | spice-gtk-0:0.26-8.el6_10.2 | Fixed | RHSA-2020:0471 |
| Red Hat Enterprise Linux 7 | libgovirt-0:0.3.4-3.el7 | Fixed | RHSA-2019:2229 |
| Red Hat Enterprise Linux 7 | spice-gtk-0:0.35-4.el7 | Fixed | RHSA-2019:2229 |
| Red Hat Enterprise Linux 7 | spice-vdagent-0:0.14.0-18.el7 | Fixed | RHSA-2019:2229 |
| Red Hat Enterprise Linux 7 | virt-viewer-0:5.0-15.el7 | Fixed | RHSA-2019:2229 |
| Red Hat Enterprise Linux 6 | spice-client | Will not fix | n/a |
| Red Hat Enterprise Linux 8 | spice-gtk | 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.
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L
AV:N/AC:L/Au:S/C:P/I:P/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
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 (18 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.36% (0.02363) | 83.16th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.36% (0.02363) | 81.52th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.32% (0.00321) | 52.10th | v4 (v2025.03.14) |
| Mar 29, 2025 | 1.86% (0.01863) | 72.03th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.33% (0.00330) | 53.78th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.15% (0.00154) | 53.02th | v3 (v2023.03.01) |
| Jun 26, 2024 | 0.16% (0.00156) | 52.18th | v3 (v2023.03.01) |
| Apr 30, 2024 | 0.18% (0.00185) | 55.15th | v3 (v2023.03.01) |
| Apr 6, 2024 | 0.26% (0.00262) | 65.45th | v3 (v2023.03.01) |
| Feb 2, 2024 | 0.22% (0.00222) | 60.41th | v3 (v2023.03.01) |
| Jan 11, 2024 | 0.21% (0.00213) | 59.30th | v3 (v2023.03.01) |
| Sep 5, 2023 | 0.15% (0.00150) | 50.57th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.12% (0.00124) | 46.08th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.16% (0.00159) | 50.55th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.20% (0.02199) | 81.14th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.20% (0.02199) | 58.00th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.82% (0.01819) | 35.19th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.82% (0.01819) | 0.00th | v1 |
References (8)
- https://access.redhat.com/errata/RHSA-2019:2229 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2020:0471 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2018-10893 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1598234 Issue Tracking
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10893 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://lists.freedesktop.org/archives/spice-devel/2018-July/044489.html mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2018-10893
- https://www.cve.org/CVERecord?id=CVE-2018-10893
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2019:2229 | vendor-advisoryx_refsource_REDHAT | |
| https://access.redhat.com/errata/RHSA-2020:0471 | vendor-advisoryx_refsource_REDHAT | |
| https://access.redhat.com/security/cve/CVE-2018-10893 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1598234 | Issue Tracking | |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10893 | x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory | |
| https://lists.freedesktop.org/archives/spice-devel/2018-July/044489.html | mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-10893 | ||
| https://www.cve.org/CVERecord?id=CVE-2018-10893 |
Change history (0)
No recorded changes yet.