CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
92.9%
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.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Alpine | edge-main | noarch | curl | < 7.64.0-r0 | UNKNOWN |
Alpine | 3.10-main | noarch | curl | < 7.64.0-r0 | UNKNOWN |
Alpine | 3.11-main | noarch | curl | < 7.64.0-r0 | UNKNOWN |
Alpine | 3.12-main | noarch | curl | < 7.64.0-r0 | UNKNOWN |
Alpine | 3.13-main | noarch | curl | < 7.64.0-r0 | UNKNOWN |
Alpine | 3.14-main | noarch | curl | < 7.64.0-r0 | UNKNOWN |
Alpine | 3.15-main | noarch | curl | < 7.64.0-r0 | UNKNOWN |
Alpine | 3.16-main | noarch | curl | < 7.64.0-r0 | UNKNOWN |
Alpine | 3.17-main | noarch | curl | < 7.64.0-r0 | UNKNOWN |
Alpine | 3.18-main | noarch | curl | < 7.64.0-r0 | UNKNOWN |
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
92.9%