UBUNTU-CVE-2021-22947

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Source

https://ubuntu.com/security/notices/UBUNTU-CVE-2021-22947

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-22947.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-22947

Related

Published

2021-09-15T00:00:00Z

Modified

2021-09-15T00:00:00Z

Severity

5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator

Summary

[none]

Details

When curl >= 7.20.0 and <= 7.78.0 connects to an IMAP or POP3 server to retrieve data using STARTTLS to upgrade to TLS security, the server can respond and send back multiple responses at once that curl caches. curl would then upgrade to TLS but not flush the in-queue of cached responses but instead continue using and trustingthe responses it got before the TLS handshake as if they were authenticated.Using this flaw, it allows a Man-In-The-Middle attacker to first inject the fake responses, then pass-through the TLS traffic from the legitimate server and trick curl into sending data back to the user thinking the attacker's injected data comes from the TLS-protected server.

References

Affected packages

Ubuntu:Pro:14.04:LTS / curl

Package

Name: curl
Purl: pkg:deb/ubuntu/curl@7.35.0-1ubuntu2.20+esm8?arch=src?distro=trusty/esm

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

7.35.0-1ubuntu2.20+esm8

Affected versions

7.*

7.32.0-1ubuntu1

7.33.0-1ubuntu1

7.34.0-1ubuntu1

7.35.0-1ubuntu1

7.35.0-1ubuntu2

7.35.0-1ubuntu2.1

7.35.0-1ubuntu2.2

7.35.0-1ubuntu2.3

7.35.0-1ubuntu2.5

7.35.0-1ubuntu2.6

7.35.0-1ubuntu2.7

7.35.0-1ubuntu2.8

7.35.0-1ubuntu2.9

7.35.0-1ubuntu2.10

7.35.0-1ubuntu2.11

7.35.0-1ubuntu2.12

7.35.0-1ubuntu2.13

7.35.0-1ubuntu2.14

7.35.0-1ubuntu2.15

7.35.0-1ubuntu2.16

7.35.0-1ubuntu2.17

7.35.0-1ubuntu2.19

7.35.0-1ubuntu2.20

7.35.0-1ubuntu2.20+esm3

7.35.0-1ubuntu2.20+esm4

7.35.0-1ubuntu2.20+esm5

7.35.0-1ubuntu2.20+esm6

7.35.0-1ubuntu2.20+esm7

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "curl-udeb": "7.35.0-1ubuntu2.20+esm8",
            "libcurl3": "7.35.0-1ubuntu2.20+esm8",
            "libcurl4-gnutls-dev": "7.35.0-1ubuntu2.20+esm8",
            "libcurl3-dbgsym": "7.35.0-1ubuntu2.20+esm8",
            "libcurl3-nss": "7.35.0-1ubuntu2.20+esm8",
            "libcurl4-doc": "7.35.0-1ubuntu2.20+esm8",
            "libcurl3-udeb-dbgsym": "7.35.0-1ubuntu2.20+esm8",
            "libcurl3-gnutls-dbgsym": "7.35.0-1ubuntu2.20+esm8",
            "libcurl4-openssl-dev": "7.35.0-1ubuntu2.20+esm8",
            "libcurl4-openssl-dev-dbgsym": "7.35.0-1ubuntu2.20+esm8",
            "curl-dbgsym": "7.35.0-1ubuntu2.20+esm8",
            "curl": "7.35.0-1ubuntu2.20+esm8",
            "libcurl3-udeb": "7.35.0-1ubuntu2.20+esm8",
            "curl-udeb-dbgsym": "7.35.0-1ubuntu2.20+esm8",
            "libcurl4-nss-dev-dbgsym": "7.35.0-1ubuntu2.20+esm8",
            "libcurl3-gnutls": "7.35.0-1ubuntu2.20+esm8",
            "libcurl4-gnutls-dev-dbgsym": "7.35.0-1ubuntu2.20+esm8",
            "libcurl3-nss-dbgsym": "7.35.0-1ubuntu2.20+esm8",
            "libcurl3-dbg": "7.35.0-1ubuntu2.20+esm8",
            "libcurl4-nss-dev": "7.35.0-1ubuntu2.20+esm8"
        }
    ]
}

Ubuntu:Pro:16.04:LTS / curl

Package

Name: curl
Purl: pkg:deb/ubuntu/curl@7.47.0-1ubuntu2.19+esm1?arch=src?distro=esm-infra/xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

7.47.0-1ubuntu2.19+esm1

Affected versions

7.*

7.43.0-1ubuntu2

7.45.0-1ubuntu1

7.46.0-1ubuntu1

7.47.0-1ubuntu1

7.47.0-1ubuntu2

7.47.0-1ubuntu2.1

7.47.0-1ubuntu2.2

7.47.0-1ubuntu2.3

7.47.0-1ubuntu2.4

7.47.0-1ubuntu2.5

7.47.0-1ubuntu2.6

7.47.0-1ubuntu2.7

7.47.0-1ubuntu2.8

7.47.0-1ubuntu2.9

7.47.0-1ubuntu2.11

7.47.0-1ubuntu2.12

7.47.0-1ubuntu2.13

7.47.0-1ubuntu2.14

7.47.0-1ubuntu2.15

7.47.0-1ubuntu2.16

7.47.0-1ubuntu2.18

7.47.0-1ubuntu2.19

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "libcurl3": "7.47.0-1ubuntu2.19+esm1",
            "libcurl4-gnutls-dev": "7.47.0-1ubuntu2.19+esm1",
            "libcurl3-dbgsym": "7.47.0-1ubuntu2.19+esm1",
            "libcurl3-nss": "7.47.0-1ubuntu2.19+esm1",
            "libcurl4-doc": "7.47.0-1ubuntu2.19+esm1",
            "libcurl3-gnutls-dbgsym": "7.47.0-1ubuntu2.19+esm1",
            "libcurl4-openssl-dev": "7.47.0-1ubuntu2.19+esm1",
            "libcurl4-openssl-dev-dbgsym": "7.47.0-1ubuntu2.19+esm1",
            "curl-dbgsym": "7.47.0-1ubuntu2.19+esm1",
            "curl": "7.47.0-1ubuntu2.19+esm1",
            "libcurl4-nss-dev-dbgsym": "7.47.0-1ubuntu2.19+esm1",
            "libcurl3-gnutls": "7.47.0-1ubuntu2.19+esm1",
            "libcurl4-gnutls-dev-dbgsym": "7.47.0-1ubuntu2.19+esm1",
            "libcurl3-nss-dbgsym": "7.47.0-1ubuntu2.19+esm1",
            "libcurl3-dbg": "7.47.0-1ubuntu2.19+esm1",
            "libcurl4-nss-dev": "7.47.0-1ubuntu2.19+esm1"
        }
    ]
}

Ubuntu:18.04:LTS / curl

Package

Name: curl
Purl: pkg:deb/ubuntu/curl@7.58.0-2ubuntu3.15?arch=src?distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

7.58.0-2ubuntu3.15

Affected versions

7.*

7.55.1-1ubuntu2

7.55.1-1ubuntu2.1

7.57.0-1ubuntu1

7.58.0-2ubuntu1

7.58.0-2ubuntu2

7.58.0-2ubuntu3

7.58.0-2ubuntu3.1

7.58.0-2ubuntu3.2

7.58.0-2ubuntu3.3

7.58.0-2ubuntu3.5

7.58.0-2ubuntu3.6

7.58.0-2ubuntu3.7

7.58.0-2ubuntu3.8

7.58.0-2ubuntu3.9

7.58.0-2ubuntu3.10

7.58.0-2ubuntu3.12

7.58.0-2ubuntu3.13

7.58.0-2ubuntu3.14

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "curl-dbgsym": "7.58.0-2ubuntu3.15",
            "curl": "7.58.0-2ubuntu3.15",
            "libcurl4": "7.58.0-2ubuntu3.15",
            "libcurl4-gnutls-dev": "7.58.0-2ubuntu3.15",
            "libcurl4-dbgsym": "7.58.0-2ubuntu3.15",
            "libcurl3-nss": "7.58.0-2ubuntu3.15",
            "libcurl4-doc": "7.58.0-2ubuntu3.15",
            "libcurl3-nss-dbgsym": "7.58.0-2ubuntu3.15",
            "libcurl3-gnutls": "7.58.0-2ubuntu3.15",
            "libcurl3-gnutls-dbgsym": "7.58.0-2ubuntu3.15",
            "libcurl4-openssl-dev": "7.58.0-2ubuntu3.15",
            "libcurl4-nss-dev": "7.58.0-2ubuntu3.15"
        }
    ]
}

Ubuntu:20.04:LTS / curl

Package

Name: curl
Purl: pkg:deb/ubuntu/curl@7.68.0-1ubuntu2.7?arch=src?distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

7.68.0-1ubuntu2.7

Affected versions

7.*

7.65.3-1ubuntu3

7.65.3-1ubuntu4

7.66.0-1ubuntu1

7.67.0-2ubuntu1

7.68.0-1ubuntu1

7.68.0-1ubuntu2

7.68.0-1ubuntu2.1

7.68.0-1ubuntu2.2

7.68.0-1ubuntu2.4

7.68.0-1ubuntu2.5

7.68.0-1ubuntu2.6

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "curl-dbgsym": "7.68.0-1ubuntu2.7",
            "curl": "7.68.0-1ubuntu2.7",
            "libcurl4": "7.68.0-1ubuntu2.7",
            "libcurl4-gnutls-dev": "7.68.0-1ubuntu2.7",
            "libcurl4-dbgsym": "7.68.0-1ubuntu2.7",
            "libcurl3-nss": "7.68.0-1ubuntu2.7",
            "libcurl4-doc": "7.68.0-1ubuntu2.7",
            "libcurl3-nss-dbgsym": "7.68.0-1ubuntu2.7",
            "libcurl3-gnutls": "7.68.0-1ubuntu2.7",
            "libcurl3-gnutls-dbgsym": "7.68.0-1ubuntu2.7",
            "libcurl4-openssl-dev": "7.68.0-1ubuntu2.7",
            "libcurl4-nss-dev": "7.68.0-1ubuntu2.7"
        }
    ]
}

Ubuntu:22.04:LTS / curl

Package

Name: curl
Purl: pkg:deb/ubuntu/curl@7.74.0-1.3ubuntu2?arch=src?distro=jammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

7.74.0-1.3ubuntu2

Ecosystem specific

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "curl-dbgsym": "7.74.0-1.3ubuntu2",
            "curl": "7.74.0-1.3ubuntu2",
            "libcurl4": "7.74.0-1.3ubuntu2",
            "libcurl4-gnutls-dev": "7.74.0-1.3ubuntu2",
            "libcurl4-dbgsym": "7.74.0-1.3ubuntu2",
            "libcurl3-nss": "7.74.0-1.3ubuntu2",
            "libcurl4-doc": "7.74.0-1.3ubuntu2",
            "libcurl3-nss-dbgsym": "7.74.0-1.3ubuntu2",
            "libcurl3-gnutls": "7.74.0-1.3ubuntu2",
            "libcurl3-gnutls-dbgsym": "7.74.0-1.3ubuntu2",
            "libcurl4-openssl-dev": "7.74.0-1.3ubuntu2",
            "libcurl4-nss-dev": "7.74.0-1.3ubuntu2"
        }
    ]
}