Vulnerability Details : CVE-2018-5095
An integer overflow vulnerability in the Skia library when allocating memory for edge builders on some systems with at least 8 GB of RAM. This results in the use of uninitialized memory, resulting in a potentially exploitable crash. This vulnerability affects Thunderbird < 52.6, Firefox ESR < 52.6, and Firefox < 58.
Vulnerability category: Overflow
Products affected by CVE-2018-5095
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_eus:7.3:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-5095
1.11%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 84 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-5095
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2018-5095
-
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.Assigned by: nvd@nist.gov (Primary)
-
The product uses or accesses a resource that has not been initialized.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-5095
-
https://www.debian.org/security/2018/dsa-4102
Debian -- Security Information -- DSA-4102-1 thunderbirdThird Party Advisory
-
https://www.debian.org/security/2018/dsa-4096
Debian -- Security Information -- DSA-4096-1 firefox-esrThird Party Advisory
-
https://www.mozilla.org/security/advisories/mfsa2018-04/
Security vulnerabilities fixed in Thunderbird 52.6 — MozillaVendor Advisory
-
https://www.mozilla.org/security/advisories/mfsa2018-03/
Security vulnerabilities fixed in Firefox ESR 52.6 — MozillaVendor Advisory
-
http://www.securityfocus.com/bid/102783
Mozilla Firefox and Firefox ESR Multiple Security VulnerabilitiesThird Party Advisory;VDB Entry
-
https://lists.debian.org/debian-lts-announce/2018/01/msg00036.html
[SECURITY] [DLA 1262-1] thunderbird security updateThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2018/01/msg00030.html
[SECURITY] [DLA 1256-1] firefox-esr security updateThird Party Advisory
-
https://bugzilla.mozilla.org/show_bug.cgi?id=1418447
1418447 - (CVE-2018-5095) Heap overflow write in SkEdgeBuilder::buildPolyIssue Tracking;Permissions Required;Vendor Advisory
-
https://access.redhat.com/errata/RHSA-2018:0262
RHSA-2018:0262 - Security Advisory - Red Hat Customer PortalThird Party Advisory
-
https://www.mozilla.org/security/advisories/mfsa2018-02/
Security vulnerabilities fixed in Firefox 58 — MozillaVendor Advisory
-
https://usn.ubuntu.com/3544-1/
USN-3544-1: Firefox vulnerabilities | Ubuntu security noticesThird Party Advisory
-
http://www.securitytracker.com/id/1040270
Mozilla Firefox Multiple Bugs Let Remote Users Spoof URLs, Bypass Cross-Domain Security Restrictions, Obtain Potentially Sensitive Information, and Execute Arbitrary Code - SecurityTrackerThird Party Advisory;VDB Entry
-
https://access.redhat.com/errata/RHSA-2018:0122
RHSA-2018:0122 - Security Advisory - Red Hat Customer PortalThird Party Advisory
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