HIGH · 8.6

CVE-2018-5129

A lack of parameter validation on IPC messages results in a potential out-of-bounds write through malformed IPC messages. This can potentially allow for sandbox escape through memory corruption in the...

Vulnerability Description

A lack of parameter validation on IPC messages results in a potential out-of-bounds write through malformed IPC messages. This can potentially allow for sandbox escape through memory corruption in the parent process. This vulnerability affects Thunderbird < 52.7, Firefox ESR < 52.7, and Firefox < 59.

CVSS Score

8.6

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE

Affected Products

VendorProductVersions
DebianDebian Linux7.0
MozillaFirefox< 59.0
RedhatEnterprise Linux Desktop6.0
RedhatEnterprise Linux Server6.0
RedhatEnterprise Linux Server Aus7.4
RedhatEnterprise Linux Server Eus7.4
RedhatEnterprise Linux Workstation6.0
CanonicalUbuntu Linux14.04
MozillaThunderbird< 52.7.0

Related Weaknesses (CWE)

References

FAQ

What is CVE-2018-5129?

CVE-2018-5129 is a vulnerability with a CVSS score of 8.6 (HIGH). A lack of parameter validation on IPC messages results in a potential out-of-bounds write through malformed IPC messages. This can potentially allow for sandbox escape through memory corruption in the...

How severe is CVE-2018-5129?

CVE-2018-5129 has been rated HIGH with a CVSS base score of 8.6/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2018-5129?

Check the references section above for vendor advisories and patch information. Affected products include: Debian Debian Linux, Mozilla Firefox, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Server Aus.