01 Record

CVE-2023-42956

The issue was addressed with improved memory handling. This issue is fixed in Safari 17.2, iOS 17.2 and iPadOS 17.2, macOS Sonoma 14.2. Processing web content may lead to a denial-of-service.

MediumPUBLISHEDCNA: apple

CNA base score6.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

View raw JSON

02 Description

The issue was addressed with improved memory handling. This issue is fixed in Safari 17.2, iOS 17.2 and iPadOS 17.2, macOS Sonoma 14.2. Processing web content may lead to a denial-of-service.

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.98% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 61.8% of scored records. A rank, not a probability.

NVD base score

6.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published: 2024-03-28 15:39Z2 YR AGO
Last updated: 2025-02-13 17:13Z1 YR AGO
Reserved: 2023-09-14
Assigning CNA: apple
Record state: PUBLISHED
Severity: Medium (CVSS 6.5)
CNA CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weaknesses: No CWE assigned
Data version: 5.1
Document digest: 7ba5bfa9ac1e4340532114250093964016c97f60717597080e25dcf980d1848c

05 Affected products

VendorProductVersionsPlatforms

AppleSafari< 17.2—

AppleiOS and iPadOS< 17.2—

ApplemacOS< 14.2—

06 References

support.apple.comhttps://support.apple.com/en-us/HT214039
support.apple.comhttps://support.apple.com/en-us/HT214035
support.apple.comhttps://support.apple.com/en-us/HT214036
support.apple.comhttps://support.apple.com/kb/HT214039
www.openwall.comhttp://www.openwall.com/lists/oss-security/2024/03/26/1
lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IXLXIOAH5S7J22LJTCIAVFVVJ4TESAX4/

07 Fixed in

AlmaLinux 9

webkit2gtk3
Fixed in 2.44.3-2.el9
webkit2gtk3-devel
Fixed in 2.44.3-2.el9
webkit2gtk3-jsc
Fixed in 2.44.3-2.el9
webkit2gtk3-jsc-devel
Fixed in 2.44.3-2.el9

CloudLinux 9

webkit2gtk3
Fixed in 2.44.3-2.el9
webkit2gtk3-devel
Fixed in 2.44.3-2.el9
webkit2gtk3-jsc
Fixed in 2.44.3-2.el9
webkit2gtk3-jsc-devel
Fixed in 2.44.3-2.el9

Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.

Debian 12

webkit2gtk
Fixed in 2.44.1-1~deb12u1
wpewebkit
No fix yet

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

webkit2gtk
Fixed in 2.44.0-1
wpewebkit
Fixed in 2.44.1-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

webkit2gtk
Fixed in 2.44.0-1
wpewebkit
Fixed in 2.44.1-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.