Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2019-3822 First vendor Publication 2019-02-06
Vendor Cve Last vendor Modification 2023-11-07

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 9.8
Base Score 9.8 Environmental Score 9.8
impact SubScore 5.9 Temporal Score 9.8
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3822

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-787 Out-of-bounds Write (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 143
Application 2
Application 1
Application 1
Application 1
Application 1
Application 2
Application 2
Application 1
Application 2
Application 1
Application 1
Application 1
Os 4
Os 1
Os 1

Sources (Detail)

https://lists.apache.org/thread.html/8338a0f605bdbb3a6098bb76f666a95fc2b2f53f...
https://support.f5.com/csp/article/K84141449?utm_source=f5support&amp%3Bu...
Source Url
BID http://www.securityfocus.com/bid/106950
CONFIRM https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3822
https://cert-portal.siemens.com/productcert/pdf/ssa-436177.pdf
https://security.netapp.com/advisory/ntap-20190315-0001/
https://security.netapp.com/advisory/ntap-20190719-0004/
https://support.f5.com/csp/article/K84141449
DEBIAN https://www.debian.org/security/2019/dsa-4386
GENTOO https://security.gentoo.org/glsa/201903-03
MISC https://curl.haxx.se/docs/CVE-2019-3822.html
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
REDHAT https://access.redhat.com/errata/RHSA-2019:3701
UBUNTU https://usn.ubuntu.com/3882-1/

Alert History

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Date Informations
2024-03-26 01:57:59
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2023-11-07 21:40:32
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2022-02-21 01:41:21
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2021-06-17 21:23:42
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2021-06-15 21:23:37
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2021-05-04 13:35:40
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2021-04-22 02:48:19
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2020-10-19 21:23:01
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2020-05-23 02:29:58
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2019-10-10 12:11:31
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2019-08-22 12:11:00
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2019-07-24 05:19:25
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2019-07-19 13:19:33
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2019-04-26 21:19:43
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2019-04-24 05:19:00
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2019-04-24 00:18:59
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2019-04-09 17:19:16
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2019-04-04 21:19:41
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2019-03-18 21:19:29
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2019-03-15 13:19:28
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2019-03-13 21:19:53
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2019-03-11 13:19:02
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2019-02-15 12:08:41
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2019-02-10 12:03:32
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2019-02-07 17:19:16
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2019-02-07 00:19:12
  • First insertion