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Vulnerability details: VCID-45jg-cgkw-aaag
Vulnerability ID VCID-45jg-cgkw-aaag
Aliases CVE-2018-5177
Summary A vulnerability exists in XSLT during number formatting where a negative buffer size may be allocated in some instances, leading to a buffer overflow and crash if it occurs. This vulnerability affects Firefox < 60.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-5177.html
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-5177.json
epss 0.00331 https://api.first.org/data/v1/epss?cve=CVE-2018-5177
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epss 0.01082 https://api.first.org/data/v1/epss?cve=CVE-2018-5177
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epss 0.01755 https://api.first.org/data/v1/epss?cve=CVE-2018-5177
rhbs medium https://bugzilla.redhat.com/show_bug.cgi?id=1576277
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-5177
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2018-5177
cvssv3 7.5 https://nvd.nist.gov/vuln/detail/CVE-2018-5177
archlinux Critical https://security.archlinux.org/AVG-693
generic_textual Medium https://ubuntu.com/security/notices/USN-3645-1
generic_textual critical https://www.mozilla.org/en-US/security/advisories/mfsa2018-11
generic_textual Medium https://www.mozilla.org/en-US/security/advisories/mfsa2018-11/#CVE-2018-5177
cvssv3.1 8.8 http://www.securitytracker.com/id/1040896
generic_textual HIGH http://www.securitytracker.com/id/1040896
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-5177.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-5177.json
https://api.first.org/data/v1/epss?cve=CVE-2018-5177
https://bugzilla.mozilla.org/show_bug.cgi?id=1451908
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-5177
https://ubuntu.com/security/notices/USN-3645-1
https://usn.ubuntu.com/3645-1/
https://www.mozilla.org/en-US/security/advisories/mfsa2018-11/#CVE-2018-5177
https://www.mozilla.org/security/advisories/mfsa2018-11/
http://www.securityfocus.com/bid/104139
http://www.securitytracker.com/id/1040896
1576277 https://bugzilla.redhat.com/show_bug.cgi?id=1576277
ASA-201805-10 https://security.archlinux.org/ASA-201805-10
AVG-693 https://security.archlinux.org/AVG-693
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
CVE-2018-5177 https://nvd.nist.gov/vuln/detail/CVE-2018-5177
mfsa2018-11 https://www.mozilla.org/en-US/security/advisories/mfsa2018-11
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-5177.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2018-5177
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2018-5177
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Found at http://www.securitytracker.com/id/1040896
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.55232
EPSS Score 0.00331
Published At May 12, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
There are no relevant records.