9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.1 High
AI Score
Confidence
High
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.008 Low
EPSS
Percentile
81.2%
Issue Overview:
FTP path trickery leads to NIL byte out of bounds write:
It was found that libcurl did not safely parse FTP URLs when using the CURLOPT_FTP_FILEMETHOD method. An attacker, able to provide a specially crafted FTP URL to an application using libcurl, could write a NULL byte at an arbitrary location, resulting in a crash, or an unspecified behavior. (CVE-2018-1000120)
LDAP NULL pointer dereference:
A NULL pointer dereference flaw was found in the way libcurl checks values returned by the openldap ldap_get_attribute_ber() function. A malicious LDAP server could use this flaw to crash a libcurl client application via a specially crafted LDAP reply. (CVE-2018-1000121)
RTSP RTP buffer over-read:
A buffer over-read exists in curl 7.20.0 to and including curl 7.58.0 in the RTSP+RTP handling code that allows an attacker to cause a denial of service or information leakage. (CVE-2018-1000122)
Affected Packages:
curl
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update curl to update your system.
New Packages:
src:
curl-7.55.1-10.amzn2.0.1.src
x86_64:
curl-7.55.1-10.amzn2.0.1.x86_64
libcurl-7.55.1-10.amzn2.0.1.x86_64
libcurl-devel-7.55.1-10.amzn2.0.1.x86_64
curl-debuginfo-7.55.1-10.amzn2.0.1.x86_64
Red Hat: CVE-2018-1000120, CVE-2018-1000121, CVE-2018-1000122
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Amazon Linux | 2 | x86_64 | curl | < 7.55.1-10.amzn2.0.1 | curl-7.55.1-10.amzn2.0.1.x86_64.rpm |
Amazon Linux | 2 | x86_64 | libcurl | < 7.55.1-10.amzn2.0.1 | libcurl-7.55.1-10.amzn2.0.1.x86_64.rpm |
Amazon Linux | 2 | x86_64 | libcurl-devel | < 7.55.1-10.amzn2.0.1 | libcurl-devel-7.55.1-10.amzn2.0.1.x86_64.rpm |
Amazon Linux | 2 | x86_64 | curl-debuginfo | < 7.55.1-10.amzn2.0.1 | curl-debuginfo-7.55.1-10.amzn2.0.1.x86_64.rpm |
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.1 High
AI Score
Confidence
High
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.008 Low
EPSS
Percentile
81.2%