CVE-2018-18584
MEDIUM
6.5
CVSS Score
Published: October 23, 2018 at 12:00 AM UTC
Updated: June 17, 2026 at 01:47 AM UTC
7 products affected across 7 vendorsDebian LinuxUbuntu LinuxEnterprise Linux
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Severity
MEDIUM6.5
Exploit prediction
EPSS 3%
Description
In mspack/cab.h in libmspack before 0.8alpha and cabextract before 1.8, the CAB block input buffer is one byte too small for the maximal Quantum block, leading to an out-of-bounds write.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 1.8
Affected range stops below 1.8, so it looks safe — our inference, not a vendor statement
Debian Linux· Debiandrupal
95%All versions
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (11)
Vendor AdvisoryThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2019:2049PatchThird Party Advisory
Source: [email protected]
https://github.com/kyz/libmspack/commit/40ef1b4093d77ad3a5cfcee1f5cb6108b3a3bcc2Mailing ListThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2018/10/msg00017.htmlVendor Advisoryx_refsource_GENTOOThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/201903-20CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-787
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