CVE-2023-38545

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2023-38545
This flaw makes curl overflow a heap based buffer in the SOCKS5 proxy handshake. When curl is asked to pass along the host name to the SOCKS5 proxy to allow that to resolve the address instead of it getting done by curl itself, the maximum length that host name can be is 255 bytes. If the host name is detected to be longer, curl switches to local name resolving and instead passes on the resolved address only. Due to this bug, the local variable that means "let the host resolve the name" could get the wrong value during a slow SOCKS5 handshake, and contrary to the intention, copy the too long host name to the target buffer instead of copying just the resolved address there. The target buffer being a heap based buffer, and the host name coming from the URL that curl has been told to operate with.

9.8 /10

CVSS v3 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
http://seclists.org/fulldisclosure/2024/Jan/34 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2024/Jan/37 Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2024/Jan/38 Mailing List Third Party Advisory
https://curl.se/docs/CVE-2023-38545.html Patch Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OGMXNRNSJ4ETDK6FRNU3J7SABXPWCHSQ/ Mailing List Third Party Advisory
https://security.netapp.com/advisory/ntap-20231027-0009/ Third Party Advisory
https://security.netapp.com/advisory/ntap-20240201-0005/ Third Party Advisory
https://support.apple.com/kb/HT214036 Third Party Advisory
https://support.apple.com/kb/HT214057 Third Party Advisory
https://support.apple.com/kb/HT214058 Third Party Advisory
https://support.apple.com/kb/HT214063 Third Party Advisory
https://www.secpod.com/blog/high-severity-heap-buffer-overflow-vulnerability/ Patch Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:haxx:libcurl:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*

Configuration 3 (hide)

OR cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*
cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:windows:*:*
cpe:2.3:a:netapp:oncommand_insight:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:oncommand_workflow_automation:-:*:*:*:*:*:*:*

Configuration 4 (hide)

OR cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
History

01 Apr 2024, 15:45

Type Values Removed Values Added
References () http://seclists.org/fulldisclosure/2024/Jan/34 - () http://seclists.org/fulldisclosure/2024/Jan/34 - Mailing List, Third Party Advisory
References () http://seclists.org/fulldisclosure/2024/Jan/37 - () http://seclists.org/fulldisclosure/2024/Jan/37 - Mailing List, Third Party Advisory
References () http://seclists.org/fulldisclosure/2024/Jan/38 - () http://seclists.org/fulldisclosure/2024/Jan/38 - Mailing List, Third Party Advisory
References () https://security.netapp.com/advisory/ntap-20240201-0005/ - () https://security.netapp.com/advisory/ntap-20240201-0005/ - Third Party Advisory
References () https://support.apple.com/kb/HT214036 - () https://support.apple.com/kb/HT214036 - Third Party Advisory
References () https://support.apple.com/kb/HT214057 - () https://support.apple.com/kb/HT214057 - Third Party Advisory
References () https://support.apple.com/kb/HT214058 - () https://support.apple.com/kb/HT214058 - Third Party Advisory
References () https://support.apple.com/kb/HT214063 - () https://support.apple.com/kb/HT214063 - Third Party Advisory
First Time Microsoft windows 11 23h2
Microsoft windows 10 22h2
Microsoft windows Server 2019
Microsoft windows 10 1809
Microsoft windows 11 22h2
Microsoft windows Server 2022
Microsoft windows 10 21h2
Microsoft windows 11 21h2
Microsoft
CPE cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:*

01 Feb 2024, 17:15

Type Values Removed Values Added
References
  • () https://security.netapp.com/advisory/ntap-20240201-0005/ -

26 Jan 2024, 17:15

Type Values Removed Values Added
References
  • () http://seclists.org/fulldisclosure/2024/Jan/34 -
  • () http://seclists.org/fulldisclosure/2024/Jan/37 -
  • () http://seclists.org/fulldisclosure/2024/Jan/38 -

23 Jan 2024, 14:15

Type Values Removed Values Added
References
  • () https://support.apple.com/kb/HT214036 -

22 Jan 2024, 19:15

Type Values Removed Values Added
References
  • () https://support.apple.com/kb/HT214057 -
  • () https://support.apple.com/kb/HT214058 -
  • () https://support.apple.com/kb/HT214063 -

21 Jan 2024, 02:23

Type Values Removed Values Added
CPE cpe:2.3:a:netapp:oncommand_workflow_automation:-:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*
cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:windows:*:*
cpe:2.3:a:netapp:oncommand_insight:-:*:*:*:*:*:*:*
First Time Netapp
Fedoraproject fedora
Netapp active Iq Unified Manager
Netapp oncommand Insight
Fedoraproject
Netapp oncommand Workflow Automation
References () https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OGMXNRNSJ4ETDK6FRNU3J7SABXPWCHSQ/ - () https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OGMXNRNSJ4ETDK6FRNU3J7SABXPWCHSQ/ - Mailing List, Third Party Advisory
References () https://security.netapp.com/advisory/ntap-20231027-0009/ - () https://security.netapp.com/advisory/ntap-20231027-0009/ - Third Party Advisory
References () https://www.secpod.com/blog/high-severity-heap-buffer-overflow-vulnerability/ - () https://www.secpod.com/blog/high-severity-heap-buffer-overflow-vulnerability/ - Patch, Third Party Advisory

16 Nov 2023, 02:15

Type Values Removed Values Added
References
  • () https://www.secpod.com/blog/high-severity-heap-buffer-overflow-vulnerability/ -

28 Oct 2023, 03:15

Type Values Removed Values Added
References
  • (MISC) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OGMXNRNSJ4ETDK6FRNU3J7SABXPWCHSQ/ -

27 Oct 2023, 15:15

Type Values Removed Values Added
References
  • (MISC) https://security.netapp.com/advisory/ntap-20231027-0009/ -

25 Oct 2023, 13:24

Type Values Removed Values Added
First Time Haxx libcurl
Haxx
CWE CWE-787
CPE cpe:2.3:a:haxx:libcurl:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 9.8
References (MISC) https://curl.se/docs/CVE-2023-38545.html - (MISC) https://curl.se/docs/CVE-2023-38545.html - Patch, Third Party Advisory

18 Oct 2023, 04:15

Type Values Removed Values Added
New CVE
Information

Published : 2023-10-18 04:15

Updated : 2024-04-01 15:45

NVD link : CVE-2023-38545

Mitre link : CVE-2023-38545

CVE.ORG link : CVE-2023-38545

JSON object : View

Products Affected

microsoft

  • windows_11_23h2
  • windows_10_1809
  • windows_10_22h2
  • windows_11_21h2
  • windows_11_22h2
  • windows_server_2019
  • windows_server_2022
  • windows_10_21h2

netapp

  • oncommand_insight
  • active_iq_unified_manager
  • oncommand_workflow_automation

haxx

  • libcurl

fedoraproject

  • fedora
CWE
CWE-787

Out-of-bounds Write