CVE-2018-16890
curl: NTLM type-2 heap out-of-bounds buffer read
Severity Score
7.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
Libcurl, desde la versión 7.36.0 hasta antes de la 7.64.0, es vulnerable a una lectura de memoria dinámica (heap) fuera de límites. La función que gestiona los mensajes entrantes NTLM de tipo 2 ("lib/vauth/ntlm.c:ntlm_decode_type2_target") no valida los datos entrantes correctamente y está sujeta a una vulnerabilidad de desbordamiento de enteros. Mediante ese desbordamiento, un servidor NTLM malicioso o roto podría engañar a libcurl para que acepte una mala combinación de longitud + desplazamiento que conduciría a una lectura del búfer fuera de límites.
An out-of-bounds read flaw was found in the way curl handled NTLMv2 type-2 headers. When connecting to a remote malicious server which uses NTLM authentication, the flaw could cause curl to crash.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2018-09-11 CVE Reserved
- 2019-02-06 CVE Published
- 2019-03-19 First Exploit
- 2024-08-05 CVE Updated
- 2024-09-01 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-125: Out-of-bounds Read
- CWE-190: Integer Overflow or Wraparound
CAPEC
References (15)
| URL | Tag | Source |
|---|---|---|
| http://www.securityfocus.com/bid/106947 | Third Party Advisory | |
| https://cert-portal.siemens.com/productcert/pdf/ssa-436177.pdf | Third Party Advisory |
|
| https://lists.apache.org/thread.html/8338a0f605bdbb3a6098bb76f666a95fc2b2f53f37fa1ecc89f1146f%40%3Cdevnull.infra.apache.org%3E | Mailing List | |
| https://support.f5.com/csp/article/K03314397?utm_source=f5support&%3Butm_medium=RSS | X_refsource_confirm |
| URL | Date | SRC |
|---|---|---|
| https://github.com/michelleamesquita/CVE-2018-16890 | 2019-03-19 |
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2019:3701 | 2023-11-07 | |
| https://usn.ubuntu.com/3882-1 | 2023-11-07 | |
| https://www.debian.org/security/2019/dsa-4386 | 2023-11-07 | |
| https://access.redhat.com/security/cve/CVE-2018-16890 | 2019-11-05 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1670252 | 2019-11-05 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Haxx Search vendor "Haxx" | Libcurl Search vendor "Haxx" for product "Libcurl" | >= 7.36.0 < 7.64.0 Search vendor "Haxx" for product "Libcurl" and version " >= 7.36.0 < 7.64.0" | - |
Affected
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| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04" | lts |
Affected
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| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04" | lts |
Affected
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| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04" | lts |
Affected
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| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 18.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.10" | - |
Affected
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| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
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| Netapp Search vendor "Netapp" | Clustered Data Ontap Search vendor "Netapp" for product "Clustered Data Ontap" | * | - |
Affected
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| Siemens Search vendor "Siemens" | Sinema Remote Connect Client Search vendor "Siemens" for product "Sinema Remote Connect Client" | <= 2.0 Search vendor "Siemens" for product "Sinema Remote Connect Client" and version " <= 2.0" | - |
Affected
| ||||||
| Oracle Search vendor "Oracle" | Communications Operations Monitor Search vendor "Oracle" for product "Communications Operations Monitor" | 3.4 Search vendor "Oracle" for product "Communications Operations Monitor" and version "3.4" | - |
Affected
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| Oracle Search vendor "Oracle" | Communications Operations Monitor Search vendor "Oracle" for product "Communications Operations Monitor" | 4.0 Search vendor "Oracle" for product "Communications Operations Monitor" and version "4.0" | - |
Affected
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| Oracle Search vendor "Oracle" | Http Server Search vendor "Oracle" for product "Http Server" | 12.2.1.3.0 Search vendor "Oracle" for product "Http Server" and version "12.2.1.3.0" | - |
Affected
| ||||||
| Oracle Search vendor "Oracle" | Secure Global Desktop Search vendor "Oracle" for product "Secure Global Desktop" | 5.4 Search vendor "Oracle" for product "Secure Global Desktop" and version "5.4" | - |
Affected
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| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 8.0 Search vendor "Redhat" for product "Enterprise Linux" and version "8.0" | - |
Affected
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| F5 Search vendor "F5" | Big-ip Access Policy Manager Search vendor "F5" for product "Big-ip Access Policy Manager" | >= 13.1.0 <= 13.1.3 Search vendor "F5" for product "Big-ip Access Policy Manager" and version " >= 13.1.0 <= 13.1.3" | - |
Affected
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| F5 Search vendor "F5" | Big-ip Access Policy Manager Search vendor "F5" for product "Big-ip Access Policy Manager" | >= 14.0.0 <= 14.1.2 Search vendor "F5" for product "Big-ip Access Policy Manager" and version " >= 14.0.0 <= 14.1.2" | - |
Affected
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| F5 Search vendor "F5" | Big-ip Access Policy Manager Search vendor "F5" for product "Big-ip Access Policy Manager" | >= 15.0.0 <= 15.0.1 Search vendor "F5" for product "Big-ip Access Policy Manager" and version " >= 15.0.0 <= 15.0.1" | - |
Affected
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