CVE-2018-10893: Multiple integer overflow and buffer overflow issues were discovered in spice-client's handling of LZ compress

This month

HIGH 7.6MITIGATE

CVE-2018-10893 is a high-severity flaw (CVSS 7.6) affecting spice. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.6 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	2.4% (top 16%)
CISA exploited list	No
Weakness	CWE-122, CWE-190
Published	2018-09-11
Last modified	2026-06-17

Publisher (CNA): Red Hat, Inc. · Vendor: spice project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2018-09-11 15:29 UTCPublished CVE record published
2026-06-17 01:34 UTCUpdated Record last modified

spice project spice MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy spice || rpm -q spice || spice --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2018-10893?

spice: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-10893 being exploited?

CVE-2018-10893 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2018-10893 affect?

CVE-2018-10893 affects spice. Severity is high (CVSS 7.6). 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.

How urgent is CVE-2018-10893?

Priority 48/100. High severity

Related CVEs

CVE-2021-20201 MEDIUM 5.3 UPGRADE MITIGATE A flaw was found in spice in versions before 0.14.92
CVE-2020-14355 MEDIUM 6.6 UPGRADE DOWNGRADE Multiple buffer overflow vulnerabilities were found in the QUIC image decoding process of the SPICE remote dis
CVE-2019-3813 HIGH 7.5 UPGRADE MITIGATE Spice, versions 0.5.2 through 0.14.1, are vulnerable to an out-of-bounds read due to an off-by-one error in me
CVE-2018-10873 HIGH 8.3 UPGRADE MITIGATE A vulnerability was discovered in SPICE before version 0.14.1 where the generated code used for demarshalling
CVE-2017-7506 HIGH 8.8 DOWNGRADE spice versions though 0.13 are vulnerable to out-of-bounds memory access when processing specially crafted mes

References

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