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NVD / CVE Program· CNA mozilla

CVE-2017-5375: JIT code allocation can allow for a bypass of ASLR and DEP protections leading to potential memory corruption attacks.

CriticalCVSS 9.8 · v3.0—Proof of concept Fix available

Noroxi assessment

Priority: Plan (action score 49/100)

  • Public proof-of-concept code exists (Exploit-DB); there is no record of exploitation in the wild.
  • Probability of exploitation in the next 30 days: 34% (FIRST EPSS); higher than 98.4% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: firefox-esr (Alpine:v3.5) 45.7.0-r0; firefox-esr (Debian:12) 45.7.0esr-1; firefox-esr (Debian:7) 45.7.0esr-1~deb7u1.

Add it to your regular patch cycle. Upgrade to firefox-esr (Alpine:v3.5) 45.7.0-r0; firefox-esr (Debian:12) 45.7.0esr-1; firefox-esr (Debian:7) 45.7.0esr-1~deb7u1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

JIT code allocation can allow for a bypass of ASLR and DEP protections leading to potential memory corruption attacks. This vulnerability affects Thunderbird < 45.7, Firefox ESR < 45.7, and Firefox < 51.

Published
Jun 11, 2018
Updated
Jun 16, 2026
EPSS
34.0% · 98th percentile

Report tools

JSON

Action score

49

Plan

Add it to your regular patch cycle.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
10 / 30 · 34.0%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • Proof of concept exists, no weaponized module
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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  • when exploit code appears or is weaponized
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  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
redhatenterprise linux desktop
redhatenterprise linux server
redhatenterprise linux workstation
mozillafirefox
mozillathunderbird
debiandebian linux

Versions reported by the vendor

Affected version ranges reported by the assigning authority (mozilla). Independent of NVD's CPE analysis and usually ahead of it.

  • Mozilla Firefox

    • unspecified and later · before 51affected

  • Mozilla Firefox ESR

    • unspecified and later · before 45.7affected

  • Mozilla Thunderbird

    • unspecified and later · before 45.7affected
Affected versions · NVD (13)

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • debian debian linux8.0
  • mozilla firefoxbefore 45.7.0
  • mozilla firefoxbefore 51.0.1
  • mozilla thunderbirdbefore 45.7.0
  • redhat enterprise linux desktop5.0
  • redhat enterprise linux desktop6.0
  • redhat enterprise linux desktop7.0
  • redhat enterprise linux server5.0
  • redhat enterprise linux server6.0
  • redhat enterprise linux server7.0
  • redhat enterprise linux workstation5.0
  • redhat enterprise linux workstation6.0
  • redhat enterprise linux workstation7.0

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Alpine:v3.5firefox-esrbefore 45.7.0-r045.7.0-r0
Debian:12firefox-esrbefore 45.7.0esr-145.7.0esr-1
Debian:7firefox-esrbefore 45.7.0esr-1~deb7u145.7.0esr-1~deb7u1
Debian:7icedovebefore 1:45.8.0-3~deb7u11:45.8.0-3~deb7u1
Debian:8firefox-esrbefore 45.7.0esr-1~deb8u145.7.0esr-1~deb8u1
Debian:8icedovebefore 1:45.8.0-3~deb8u11:45.8.0-3~deb8u1
Red Hat:enterprise_linux:5::clientfirefoxbefore 0:45.7.0-2.el5_110:45.7.0-2.el5_11
Red Hat:enterprise_linux:5::clientfirefox-debuginfobefore 0:45.7.0-2.el5_110:45.7.0-2.el5_11
Red Hat:enterprise_linux:5::clientthunderbirdbefore 0:45.7.0-1.el5_110:45.7.0-1.el5_11
Red Hat:enterprise_linux:5::clientthunderbird-debuginfobefore 0:45.7.0-1.el5_110:45.7.0-1.el5_11
Red Hat:enterprise_linux:6::clientfirefoxbefore 0:45.7.0-2.el6_80:45.7.0-2.el6_8
Red Hat:enterprise_linux:6::clientfirefox-debuginfobefore 0:45.7.0-2.el6_80:45.7.0-2.el6_8
Red Hat:enterprise_linux:6::clientthunderbirdbefore 0:45.7.0-1.el6_80:45.7.0-1.el6_8
Red Hat:enterprise_linux:6::clientthunderbird-debuginfobefore 0:45.7.0-1.el6_80:45.7.0-1.el6_8
Red Hat:enterprise_linux:7::clientfirefoxbefore 0:45.7.0-2.el7_30:45.7.0-2.el7_3
Red Hat:enterprise_linux:7::clientfirefox-debuginfobefore 0:45.7.0-2.el7_30:45.7.0-2.el7_3
Red Hat:enterprise_linux:7::clientthunderbirdbefore 0:45.7.0-1.el7_30:45.7.0-1.el7_3
Red Hat:enterprise_linux:7::clientthunderbird-debuginfobefore 0:45.7.0-1.el7_30:45.7.0-1.el7_3
SUSE:Linux Enterprise Desktop 12 SP1MozillaFirefoxbefore 45.7.0esr-99.145.7.0esr-99.1
SUSE:Linux Enterprise Software Development Kit 11 SP4MozillaFirefoxbefore 45.7.0esr-65.245.7.0esr-65.2
SUSE:Package Hub 12MozillaThunderbirdbefore 45.7.0-23.145.7.0-23.1

Same product

redhat: all records

Other highest-scoring records for the same primary product.

  • CVE-2018-14649It was found that ceph-isci-cli package as shipped by Red Hat Ceph Storage 2 and 3 is using python-werkzeug in debug shell mode.
    43Plan
  • CVE-2016-7050SerializableProvider in RESTEasy in Red Hat Enterprise Linux Desktop 7, Red Hat Enterprise Linux HPC Node 7, Red Hat Enterprise Linux…
    41Plan
  • CVE-2010-5325Heap-based buffer overflow in the unhtmlify function in foomatic-rip in foomatic-filters before 4.0.6 allows remote attackers to cause a…
    41Plan

Published before and after this one in the same product

  • ← EarlierCVE-2016-9904Jun 11, 2018 · An attacker could use a JavaScript Map/Set timing attack to determine whether an atom is used by another compartment/zone in specific…
    31Monitor
  • ← EarlierCVE-2016-9905Jun 11, 2018 · A potentially exploitable crash in "EnumerateSubDocuments" while adding or removing sub-documents.
    36Monitor
  • Later →CVE-2017-5400Jun 11, 2018 · JIT-spray targeting asm.js combined with a heap spray allows for a bypass of ASLR and DEP protections leading to potential memory…
    40Plan

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
alpine:firefox-esr45.7.0-r0 · Alpine:v3.5Package registry (OSV)
debian:firefox-esr45.7.0esr-1 · Debian:12Package registry (OSV)
debian:icedove1:45.8.0-3~deb7u1 · Debian:7Package registry (OSV)
red hat:firefox0:45.7.0-2.el5_11 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:firefox-debuginfo0:45.7.0-2.el5_11 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:thunderbird0:45.7.0-1.el5_11 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:thunderbird-debuginfo0:45.7.0-1.el5_11 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
suse:MozillaFirefox45.7.0esr-65.2 · SUSE:Linux Enterprise Software Development Kit 11 SP4Package registry (OSV)
suse:MozillaThunderbird45.7.0-23.1 · SUSE:Package Hub 12Package registry (OSV)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Exploit-DB entry ×3

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Exploit-DB entryremote2018-03-16
Exploit-DB entryremote2018-03-16
Exploit-DB entryremote2017-07-14

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. First PoC-333 d
  2. Published
  3. TodayNov 15, 2026+3079 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Not on record for this CVE: patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

References

Show all references (11 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records