Critical severity · published Feb 28, 2019
CVE-2018-18498
A potential vulnerability leading to an integer overflow can occur during buffer size calculations for images when a raw value is used instead of the checked value
9.8
CVSS
4%
EPSS
No
On KEV
Description
A potential vulnerability leading to an integer overflow can occur during buffer size calculations for images when a raw value is used instead of the checked value. This leads to a possible out-of-bounds write. This vulnerability affects Thunderbird < 60.4, Firefox ESR < 60.4, and Firefox < 64.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)4.0% · higher than 91% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Firefox · Mozilla
before 64 · source: vendor, NVD
FE
Firefox ESR · Mozilla
before 60.4 · source: vendor, NVD
TH
Thunderbird · Mozilla
before 60.4 · source: vendor, NVD
DL
Debian Linux · Debian
8.0; 9.0 · source: NVD
EL
Enterprise Linux Desktop · Redhat
6.0; 7.0 · source: NVD
EL
Enterprise Linux Server · Redhat
6.0; 7.0 · source: NVD
EL
Enterprise Linux Server Aus · Redhat
7.6 · source: NVD
EL
Enterprise Linux Server Eus · Redhat
7.6 · source: NVD
EL
Enterprise Linux Server Tus · Redhat
7.6 · source: NVD
EL
Enterprise Linux Workstation · Redhat
6.0; 7.0 · source: NVD
UL
Ubuntu Linux · Canonical
14.04; 16.04; 18.04; 18.10 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-18498
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-18498
Third Party Advisory
http://www.securityfocus.com/bid/106168
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3831
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3833
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0159
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0160
Issue Tracking
https://bugzilla.mozilla.org/show_bug.cgi?id=1500011
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