Home/CVE/JIT code allocation can allow for a bypass of ASLR and DEP protections leading to potential memory corruption attacks. T
CVE

CVE-2017-5375

JIT code allocation can allow for a bypass of ASLR and DEP protections leading to potential memory corruption attacks. T

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.

CRITICAL · CVSS 9.8 EPSS 0.58393
Act now
  • EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
  • EPSS percentile: top 2% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules1 YARA rules0
Look this up elsewhere - one-click external pivots
NVDCVE.orgCISAVulnersExploit-DBGitHub PoCVulnCheck KEVGreyNoise
▸ How to read a CVE - triage first, then detect and patch
This page is every public fact about CVE-2017-5375, cross-linked. Its job is to answer one question fast - does this need my attention now? - and then hand you the two things you do about it. Here is how an analyst reads it.
Triage: should I act now? Four signals, and they are not interchangeable:
CVSSseverity - how bad it is IF exploited, 0-10. A high CVSS alone is not urgency; a flaw can be a perfect 10 and never actually be attacked. EPSSprobability - a model’s estimate of the chance it is exploited in the next 30 days, 0-1. This is the “will it actually happen” signal. CISA KEVconfirmed - it is being exploited in the wild right now. The strongest signal on the page; KEV beats any score. Weaponisedavailability - public exploits / PoCs, and especially Metasploit modules rated Excellent / Great. Reliable, packaged exploit code means low-skill attackers can use it today.
How they combine: KEV, or a dependable Metasploit module, means patch now regardless of CVSS. High CVSS + low EPSS + no exploit is real but not an emergency - schedule it. Low CVSS but KEV-listed still gets patched now. The verdict above already weighed these for you; this is how it got there.
Then what - two workflows:
Detectwhen you cannot patch today, follow this CVE to the ATT&CK techniques it enables, then Build a SIEM detection (the green button) - author a rule, test it in Atomic, deploy it. That buys visibility while the patch waits. PatchAffected products / packages tell you if you are exposed; Fixed versions by distribution and Vendor advisories give the exact version that closes it.
Reading order for the panels below: verdict + badges, then Public exploits / Metasploit (is it weaponised), then ATT&CK techniques + Sigma / IDS rules (can I detect it), then Affected products / packages + Fixed versions (am I exposed, what patches it), then Threat actors / IOCs (who uses it), then Scoring & timeline / references (the evidence).
◆

ATT&CK techniques

1

Techniques this CVE enables - linked via CWECAPECATT&CK. High◆ = named directly in ATT&CK or Nuclei templates.

T1190 · Exploit Public-Facing Application
▤ Build a SIEM detection for these techniques
▤

CAPEC attack patterns

12

Attack patterns this CVE enables - the bridge from weakness to ATT&CK technique.

CAPEC-CAPEC-10 · Buffer Overflow via Environment Variables CAPEC-CAPEC-100 · Overflow Buffers CAPEC-CAPEC-123 · Buffer Manipulation CAPEC-CAPEC-14 · Client-side Injection-induced Buffer Overflow CAPEC-CAPEC-24 · Filter Failure through Buffer Overflow CAPEC-CAPEC-42 · MIME Conversion CAPEC-CAPEC-44 · Overflow Binary Resource File CAPEC-CAPEC-45 · Buffer Overflow via Symbolic Links CAPEC-CAPEC-46 · Overflow Variables and Tags CAPEC-CAPEC-47 · Buffer Overflow via Parameter Expansion CAPEC-CAPEC-8 · Buffer Overflow in an API Call CAPEC-CAPEC-9 · Buffer Overflow in Local Command-Line Utilities
⬡

Weakness Classification

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

Affected Products & Versions

7
redhat enterprise linux desktopall versions
redhat enterprise linux serverall versions
redhat enterprise linux workstationall versions
mozilla firefox< 45.7.0
mozilla firefox< 51.0.1
mozilla thunderbird< 45.7.0
debian linuxall versions
⚠

Public Exploits & PoCs

13
These PoC and exploit links come from public sources and are not verified to be safe or functional. Review the code before running anything, and treat unverified entries as untrusted.
remoteFirefox 44.0.2 - ASM.JS JIT-Spray Remote Code Executionverified
remoteFirefox 46.0.1 - ASM.JS JIT-Spray Remote Code Executionverified
remoteFirefox 50.0.1 - ASM.JS JIT-Spray Remote Code Execution2017-07-14
pocPublic PoC (nvd-reference)
pocPublic PoC (nvd-reference)
pocPublic PoC (nvd-reference)
pocARPSyndicate/cvemon (trickest)
pocZihanYe/web-browser-vulnerabilities (trickest)
pochwiwonl/dayone (trickest)
poctronghieu220403/Common-Vulnerabilities-and-Exposures-Reports (trickest)
pocwww.exploit-db.com · 42327www.exploit-db.com
pocwww.exploit-db.com · 44293www.exploit-db.com
pocwww.exploit-db.com · 44294www.exploit-db.com
📦

Fixed versions by distribution

10
The package version that resolves this CVE on each Linux distribution, from the vendor’s published security data. fixed in shows a patched version exists; open means the package is listed as affected with no fix yet.
oracle allfirefox fixed in 0:45.7.0-1.0.1.el5_11
oracle allthunderbird fixed in 0:45.7.0-1.0.1.el7_3
suse sle15MozillaFirefox fixed in 0:102.11.0-150200.152.87.1
suse sle15MozillaFirefox-devel fixed in 0:91.8.0-150200.152.26.1
suse sle15MozillaFirefox-translations-common fixed in 0:52.7.3-1.35
suse sle15MozillaFirefox-translations-other fixed in 0:102.11.0-150200.152.87.1
suse sle15MozillaThunderbird fixed in 0:78.10.0-8.23.1
suse sle15MozillaThunderbird-devel fixed in 0:52.8-1.2
suse sle15MozillaThunderbird-translations-common fixed in 0:60.6.1-3.28.1
suse sle15MozillaThunderbird-translations-other fixed in 0:52.8-1.2
◈

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighSQLite Firefox Profile Data DB Access
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.0 · [email protected]
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD11 Jun 2018 · 09:29 PM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

12
suse-csafopenSUSE-SU-2024:14572-1
suse-csafopenSUSE-SU-2024:10600-1
suse-csafopenSUSE-SU-2024:10601-1
suse-csafSUSE-SU-2017:0426-1
suse-csafSUSE-SU-2017:0427-1
🔗

References & Sources

12
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://rhn.redhat.com/errata/RHSA-2017-0190.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0238.htmlThird Party Advisory
http://www.securityfocus.com/bid/95757Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1037693Third Party AdvisoryVDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1325200Issue TrackingPermissions Required
https://security.gentoo.org/glsa/201702-13Third Party Advisory
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