5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
0.001 Low
EPSS
Percentile
40.3%
Debian LTS Advisory DLA-2773-1 [email protected]
https://www.debian.org/lts/security/ Thorsten Alteholz
September 30, 2021 https://wiki.debian.org/LTS
Package : curl
Version : 7.52.1-5+deb9u16
CVE ID : CVE-2021-22946 CVE-2021-22947
Two issues have been found in curl, a command line tool and an easy-to-use
client-side library for transferring data with URL syntax.
CVE-2021-22946
Crafted answers from a server might force clients to not use TLS on
connections though TLS was required and expected.
CVE-2021-22947
When using STARTTLS to initiate a TLS connection, the server might
send multiple answers before the TLS upgrade and such the client
would handle them as being trusted. This could be used by a
MITM-attacker to inject fake response data.
For Debian 9 stretch, these problems have been fixed in version
7.52.1-5+deb9u16.
We recommend that you upgrade your curl packages.
For the detailed security status of curl please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/curl
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 9 | i386 | libcurl3-dbg | < 7.52.1-5+deb9u16 | libcurl3-dbg_7.52.1-5+deb9u16_i386.deb |
Debian | 11 | amd64 | libcurl4-gnutls-dev | < 7.74.0-1.3+deb11u2 | libcurl4-gnutls-dev_7.74.0-1.3+deb11u2_amd64.deb |
Debian | 9 | armhf | libcurl4-openssl-dev | < 7.52.1-5+deb9u16 | libcurl4-openssl-dev_7.52.1-5+deb9u16_armhf.deb |
Debian | 9 | armhf | libcurl4-nss-dev | < 7.52.1-5+deb9u16 | libcurl4-nss-dev_7.52.1-5+deb9u16_armhf.deb |
Debian | 11 | armel | libcurl4-dbgsym | < 7.74.0-1.3+deb11u2 | libcurl4-dbgsym_7.74.0-1.3+deb11u2_armel.deb |
Debian | 10 | armhf | libcurl4-nss-dev | < 7.64.0-4+deb10u3 | libcurl4-nss-dev_7.64.0-4+deb10u3_armhf.deb |
Debian | 9 | i386 | libcurl4-gnutls-dev | < 7.52.1-5+deb9u16 | libcurl4-gnutls-dev_7.52.1-5+deb9u16_i386.deb |
Debian | 11 | arm64 | libcurl3-gnutls-dbgsym | < 7.74.0-1.3+deb11u2 | libcurl3-gnutls-dbgsym_7.74.0-1.3+deb11u2_arm64.deb |
Debian | 9 | armel | libcurl4-nss-dev | < 7.52.1-5+deb9u16 | libcurl4-nss-dev_7.52.1-5+deb9u16_armel.deb |
Debian | 11 | all | libcurl4-doc | < 7.74.0-1.3+deb11u2 | libcurl4-doc_7.74.0-1.3+deb11u2_all.deb |
5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
0.001 Low
EPSS
Percentile
40.3%