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Vulnerability details: VCID-2wqm-b37p-x7dr
Vulnerability ID VCID-2wqm-b37p-x7dr
Aliases CVE-2023-38039
Summary When curl retrieves an HTTP response, it stores the incoming headers so that they can be accessed later via the libcurl headers API. However, curl did not have a limit in how many or how large headers it would accept in a response, allowing a malicious server to stream an endless series of headers and eventually cause curl to run out of heap memory.
Status Published
Exploitability 0.5
Weighted Severity 6.8
Risk 3.4
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-770 Allocation of Resources Without Limits or Throttling
System Score Found at
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-38039.json
epss 0.09047 https://api.first.org/data/v1/epss?cve=CVE-2023-38039
epss 0.09047 https://api.first.org/data/v1/epss?cve=CVE-2023-38039
epss 0.0927 https://api.first.org/data/v1/epss?cve=CVE-2023-38039
epss 0.14467 https://api.first.org/data/v1/epss?cve=CVE-2023-38039
epss 0.14467 https://api.first.org/data/v1/epss?cve=CVE-2023-38039
epss 0.14467 https://api.first.org/data/v1/epss?cve=CVE-2023-38039
epss 0.14797 https://api.first.org/data/v1/epss?cve=CVE-2023-38039
epss 0.14797 https://api.first.org/data/v1/epss?cve=CVE-2023-38039
epss 0.14797 https://api.first.org/data/v1/epss?cve=CVE-2023-38039
epss 0.14797 https://api.first.org/data/v1/epss?cve=CVE-2023-38039
epss 0.14797 https://api.first.org/data/v1/epss?cve=CVE-2023-38039
epss 0.14797 https://api.first.org/data/v1/epss?cve=CVE-2023-38039
epss 0.14797 https://api.first.org/data/v1/epss?cve=CVE-2023-38039
epss 0.14797 https://api.first.org/data/v1/epss?cve=CVE-2023-38039
epss 0.14797 https://api.first.org/data/v1/epss?cve=CVE-2023-38039
epss 0.17815 https://api.first.org/data/v1/epss?cve=CVE-2023-38039
epss 0.17815 https://api.first.org/data/v1/epss?cve=CVE-2023-38039
epss 0.17815 https://api.first.org/data/v1/epss?cve=CVE-2023-38039
epss 0.17815 https://api.first.org/data/v1/epss?cve=CVE-2023-38039
epss 0.17815 https://api.first.org/data/v1/epss?cve=CVE-2023-38039
epss 0.17815 https://api.first.org/data/v1/epss?cve=CVE-2023-38039
epss 0.17815 https://api.first.org/data/v1/epss?cve=CVE-2023-38039
cvssv3.1 Medium https://curl.se/docs/CVE-2023-38039.html
cvssv3.1 7.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2023-38039
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-38039.json
https://api.first.org/data/v1/epss?cve=CVE-2023-38039
https://curl.se/docs/CVE-2023-38039.html
http://seclists.org/fulldisclosure/2023/Oct/17
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://hackerone.com/reports/2072338
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5DCZMYODALBLVOXVJEN2LF2MLANEYL4F/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M6KGKB2JNZVT276JYSKI6FV2VFJUGDOJ/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TEAWTYHC3RT6ZRS5OZRHLAIENVN6CCIS/
https://security.netapp.com/advisory/ntap-20231013-0005/
https://www.insyde.com/security-pledge/SA-2023064
2239135 https://bugzilla.redhat.com/show_bug.cgi?id=2239135
cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
CVE-2023-38039 https://nvd.nist.gov/vuln/detail/CVE-2023-38039
RHSA-2023:7625 https://access.redhat.com/errata/RHSA-2023:7625
RHSA-2023:7626 https://access.redhat.com/errata/RHSA-2023:7626
USN-6363-1 https://usn.ubuntu.com/6363-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-38039.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2023-38039
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.92348
EPSS Score 0.09047
Published At Aug. 1, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:37:29.258724+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.22/main.json 37.0.0