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Vulnerability from cleanstart
Published
2026-07-30 07:10
Modified
2026-07-30 09:38
Summary
Security fixes in curl 7.64.0-r0
Details
Package curl version 7.64.0-r0 fixes 3 vulnerabilities: CVE-2018-16890, CVE-2019-3822, CVE-2019-3823
References
| URL | Type | ||||
|---|---|---|---|---|---|
|
|||||
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CVE-2018-16890 (GCVE-0-2018-16890)
Vulnerability from cvelistv5 – Published: 2019-02-06 20:00 – Updated: 2026-04-15 20:53
VLAI
EPSS
VEX
Summary
libcurl versions from 7.36.0 to before 7.64.0 is vulnerable to a heap buffer out-of-bounds read. The function handling incoming NTLM type-2 messages (`lib/vauth/ntlm.c:ntlm_decode_type2_target`) does not validate incoming data correctly and is subject to an integer overflow vulnerability. Using that overflow, a malicious or broken NTLM server could trick libcurl to accept a bad length + offset combination that would lead to a buffer read out-of-bounds.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
12 references
| URL | Tags |
|---|---|
| https://www.debian.org/security/2019/dsa-4386 | vendor-advisoryx_refsource_DEBIAN |
| http://www.securityfocus.com/bid/106947 | vdb-entryx_refsource_BID |
| https://curl.haxx.se/docs/CVE-2018-16890.html | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2019031… | x_refsource_CONFIRM |
| https://usn.ubuntu.com/3882-1/ | vendor-advisoryx_refsource_UBUNTU |
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| https://lists.apache.org/thread.html/8338a0f605bd… | mailing-listx_refsource_MLIST |
| https://cert-portal.siemens.com/productcert/pdf/s… | x_refsource_CONFIRM |
| https://www.oracle.com/technetwork/security-advis… | x_refsource_MISC |
| https://www.oracle.com/technetwork/security-advis… | x_refsource_MISC |
| https://support.f5.com/csp/article/K03314397?utm_… | x_refsource_CONFIRM |
| https://access.redhat.com/errata/RHSA-2019:3701 | vendor-advisoryx_refsource_REDHAT |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The curl Project | curl |
Affected:
7.64.0
|
Date Public
2019-02-06 00:00
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CVE-2019-3822 (GCVE-0-2019-3822)
Vulnerability from cvelistv5 – Published: 2019-02-06 20:00 – Updated: 2026-04-15 20:52
VLAI
EPSS
VEX
Summary
libcurl versions from 7.36.0 to before 7.64.0 are vulnerable to a stack-based buffer overflow. The function creating an outgoing NTLM type-3 header (`lib/vauth/ntlm.c:Curl_auth_create_ntlm_type3_message()`), generates the request HTTP header contents based on previously received data. The check that exists to prevent the local buffer from getting overflowed is implemented wrongly (using unsigned math) and as such it does not prevent the overflow from happening. This output data can grow larger than the local buffer if very large 'nt response' data is extracted from a previous NTLMv2 header provided by the malicious or broken HTTP server. Such a 'large value' needs to be around 1000 bytes or more. The actual payload data copied to the target buffer comes from the NTLMv2 type-2 response header.
Severity
7.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
15 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The curl Project | curl |
Affected:
7.64.0
|
Date Public
2019-02-06 00:00
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CVE-2019-3823 (GCVE-0-2019-3823)
Vulnerability from cvelistv5 – Published: 2019-02-06 20:00 – Updated: 2026-04-15 20:52
VLAI
EPSS
VEX
Summary
libcurl versions from 7.34.0 to before 7.64.0 are vulnerable to a heap out-of-bounds read in the code handling the end-of-response for SMTP. If the buffer passed to `smtp_endofresp()` isn't NUL terminated and contains no character ending the parsed number, and `len` is set to 5, then the `strtol()` call reads beyond the allocated buffer. The read contents will not be returned to the caller.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
12 references
| URL | Tags |
|---|---|
| https://security.gentoo.org/glsa/201903-03 | vendor-advisoryx_refsource_GENTOO |
| https://www.debian.org/security/2019/dsa-4386 | vendor-advisoryx_refsource_DEBIAN |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… | x_refsource_CONFIRM |
| https://curl.haxx.se/docs/CVE-2019-3823.html | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2019031… | x_refsource_CONFIRM |
| https://usn.ubuntu.com/3882-1/ | vendor-advisoryx_refsource_UBUNTU |
| http://www.securityfocus.com/bid/106950 | vdb-entryx_refsource_BID |
| https://lists.apache.org/thread.html/8338a0f605bd… | mailing-listx_refsource_MLIST |
| https://www.oracle.com/technetwork/security-advis… | x_refsource_MISC |
| https://www.oracle.com/technetwork/security-advis… | x_refsource_MISC |
| https://access.redhat.com/errata/RHSA-2019:3701 | vendor-advisoryx_refsource_REDHAT |
| https://cert-portal.siemens.com/productcert/pdf/s… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The curl Project | curl |
Affected:
7.64.0
|
Date Public
2019-02-06 00:00
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"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2019-3823",
"datePublished": "2019-02-06T20:00:00.000Z",
"dateReserved": "2019-01-03T00:00:00.000Z",
"dateUpdated": "2026-04-15T20:52:15.885Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
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