9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
9.2 High
AI Score
Confidence
Low
5.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:N/A:P
0.004 Low
EPSS
Percentile
73.3%
USN-5079-1 fixed vulnerabilities in curl. One of the fixes introduced a
regression on Ubuntu 18.04 LTS. This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
It was discovered that curl incorrect handled memory when sending data to
an MQTT server. A remote attacker could use this issue to cause curl to
crash, resulting in a denial of service, or possibly execute arbitrary
code. (CVE-2021-22945)
Patrick Monnerat discovered that curl incorrectly handled upgrades to TLS.
When receiving certain responses from servers, curl would continue without
TLS even when the option to require a successful upgrade to TLS was
specified. (CVE-2021-22946)
Patrick Monnerat discovered that curl incorrectly handled responses
received before STARTTLS. A remote attacker could possibly use this issue
to inject responses and intercept communications. (CVE-2021-22947)
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Ubuntu | 18.04 | noarch | libcurl3-gnutls | < 7.58.0-2ubuntu3.16 | UNKNOWN |
Ubuntu | 18.04 | noarch | curl | < 7.58.0-2ubuntu3.16 | UNKNOWN |
Ubuntu | 18.04 | noarch | curl-dbgsym | < 7.58.0-2ubuntu3.16 | UNKNOWN |
Ubuntu | 18.04 | noarch | libcurl3-gnutls-dbgsym | < 7.58.0-2ubuntu3.16 | UNKNOWN |
Ubuntu | 18.04 | noarch | libcurl3-nss | < 7.58.0-2ubuntu3.16 | UNKNOWN |
Ubuntu | 18.04 | noarch | libcurl3-nss-dbgsym | < 7.58.0-2ubuntu3.16 | UNKNOWN |
Ubuntu | 18.04 | noarch | libcurl4 | < 7.58.0-2ubuntu3.16 | UNKNOWN |
Ubuntu | 18.04 | noarch | libcurl4-dbgsym | < 7.58.0-2ubuntu3.16 | UNKNOWN |
Ubuntu | 18.04 | noarch | libcurl4-doc | < 7.58.0-2ubuntu3.16 | UNKNOWN |
Ubuntu | 18.04 | noarch | libcurl4-gnutls-dev | < 7.58.0-2ubuntu3.16 | UNKNOWN |
9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
9.2 High
AI Score
Confidence
Low
5.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:N/A:P
0.004 Low
EPSS
Percentile
73.3%