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ubuntuUbuntuUSN-5079-1
HistorySep 15, 2021 - 12:00 a.m.

curl vulnerabilities

2021-09-1500:00:00
ubuntu.com
140
ubuntu
curl
vulnerabilities
memory
tls
mqtt
denial of service
arbitrary code
cve-2021-22945
patrick monnerat
upgrade
starttls
intercept.

CVSS2

5.8

Attack Vector

NETWORK

Attack 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

CVSS3

9.1

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

AI Score

8.9

Confidence

Low

EPSS

0.007

Percentile

80.2%

JSON

Releases

  • Ubuntu 21.04
  • Ubuntu 20.04 LTS
  • Ubuntu 18.04 ESM

Packages

  • curl - HTTP, HTTPS, and FTP client and client libraries

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)

OSVersionArchitecturePackageVersionFilename
Ubuntu21.04noarchlibcurl3-gnutls< 7.74.0-1ubuntu2.3UNKNOWN
Ubuntu21.04noarchcurl< 7.74.0-1ubuntu2.3UNKNOWN
Ubuntu21.04noarchcurl-dbgsym< 7.74.0-1ubuntu2.3UNKNOWN
Ubuntu21.04noarchlibcurl3-gnutls-dbgsym< 7.74.0-1ubuntu2.3UNKNOWN
Ubuntu21.04noarchlibcurl3-nss< 7.74.0-1ubuntu2.3UNKNOWN
Ubuntu21.04noarchlibcurl3-nss-dbgsym< 7.74.0-1ubuntu2.3UNKNOWN
Ubuntu21.04noarchlibcurl4< 7.74.0-1ubuntu2.3UNKNOWN
Ubuntu21.04noarchlibcurl4-dbgsym< 7.74.0-1ubuntu2.3UNKNOWN
Ubuntu21.04noarchlibcurl4-doc< 7.74.0-1ubuntu2.3UNKNOWN
Ubuntu21.04noarchlibcurl4-gnutls-dev< 7.74.0-1ubuntu2.3UNKNOWN
Rows per page:
1-10 of 361

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CVSS2

5.8

Attack Vector

NETWORK

Attack 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

CVSS3

9.1

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

AI Score

8.9

Confidence

Low

EPSS

0.007

Percentile

80.2%

JSON
Related for USN-5079-1
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