CVE-2023-42917
Confirmed PUBLISHEDA memory corruption vulnerability was addressed with improved locking. This issue is fixed in iOS 17.1.2 and iPadOS 17.1.2, macOS Sonoma 14.1.2,...
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
A memory corruption vulnerability was addressed with improved locking. This issue is fixed in iOS 17.1.2 and iPadOS 17.1.2, macOS Sonoma 14.1.2, Safari 17.1.2. Processing web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been exploited against versions of iOS before iOS 16.7.1.
- CVE Published
- Nov 30, 2023
- Exploitation Reported
- Dec 04, 2023
- CVSS
- 8.8 High
- EPSS
- —
Affected Versions
| Vendor | Product | Version | Status |
|---|---|---|---|
| Apple |
Safari
|
unspecified to < 17.1 |
Affected |
| Apple |
macOS
|
unspecified to < 14.1 |
Affected |
| Apple |
iOS and iPadOS
|
unspecified to < 17.1 |
Affected |
CVE References
- support.apple.com/en-us/HT214033 support.apple.com · CVE Record https://support.apple.com/en-us/HT214033
- support.apple.com/en-us/HT214032 support.apple.com · CVE Record https://support.apple.com/en-us/HT214032
- support.apple.com/en-us/HT214031 support.apple.com · CVE Record https://support.apple.com/en-us/HT214031
- support.apple.com/kb/HT214033 support.apple.com · CVE Record https://support.apple.com/kb/HT214033
- OSS-Security Mailing List openwall.com · CVE Record http://www.openwall.com/lists/oss-security/2023/12/05/1
Show 13 more references
- lists.fedoraproject.org/archives/list/[email protected]... lists.fedoraproject.org · CVE Record https://lists.fedoraproject.org/archives/list/package-announce@lists....
- lists.fedoraproject.org/archives/list/[email protected]... lists.fedoraproject.org · CVE Record https://lists.fedoraproject.org/archives/list/package-announce@lists....
- support.apple.com/kb/HT214034 support.apple.com · CVE Record https://support.apple.com/kb/HT214034
- debian.org/security/2023/dsa-5575 debian.org · CVE Record https://www.debian.org/security/2023/dsa-5575
- seclists.org/fulldisclosure/2023/Dec/3 seclists.org · CVE Record http://seclists.org/fulldisclosure/2023/Dec/3
- seclists.org/fulldisclosure/2023/Dec/4 seclists.org · CVE Record http://seclists.org/fulldisclosure/2023/Dec/4
- seclists.org/fulldisclosure/2023/Dec/5 seclists.org · CVE Record http://seclists.org/fulldisclosure/2023/Dec/5
- seclists.org/fulldisclosure/2023/Dec/8 seclists.org · CVE Record http://seclists.org/fulldisclosure/2023/Dec/8
- seclists.org/fulldisclosure/2023/Dec/13 seclists.org · CVE Record http://seclists.org/fulldisclosure/2023/Dec/13
- seclists.org/fulldisclosure/2023/Dec/12 seclists.org · CVE Record http://seclists.org/fulldisclosure/2023/Dec/12
- security.gentoo.org/glsa/202401-04 security.gentoo.org · CVE Record https://security.gentoo.org/glsa/202401-04
- support.apple.com/kb/HT214062 support.apple.com · CVE Record https://support.apple.com/kb/HT214062
- seclists.org/fulldisclosure/2024/Jan/35 seclists.org · CVE Record http://seclists.org/fulldisclosure/2024/Jan/35
Recommended Actions
- Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
- Check enrichment artifacts for scanner coverage and available PoCs before rolling remediation validation.
- Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CISA First | 2023-12-04 00:00 UTC |
No detection artifacts or sensor request patterns are available for this CVE yet.
Check back as sensor telemetry and scanner integrations are updated.
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploitation Status
Exploited in the wild
Recorded 2023-12-04 00:00:00 UTC · CISA
Weaknesses (CWE)
-
Out-of-bounds Write
Scanner Integrations
| Scanner | Reference | Detected |
|---|---|---|
| Nessus | https://www.tenable.com/plugins/nessus/236085 | Jun 02, 2025 |
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
09:26 UTC about 1 year ago09:26 UTC · about 1 year ago
Nessus plugin available
Scanner coverage available
-
00:00 UTC over 2 years ago00:00 UTC · over 2 years ago
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
22:18 UTC over 2 years ago22:18 UTC · over 2 years ago
CVE published
Vulnerability disclosed publicly
-
19:05 UTC almost 3 years ago19:05 UTC · almost 3 years ago
CVE ID reserved
Identifier reserved by the CNA
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v2/pro/kevs/CVE-2023-42917
{
"cve_id": "CVE-2023-42917",
"title": "A memory corruption vulnerability was addressed with improved locking. This i...",
"affected_vendor": "Apple",
"affected_product": "Safari, macOS, iOS and iPadOS",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "Confirmed",
"cvss_score": 8.8,
"epss_score": null,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}