An update for curl is now available for openEuler-20.03-LTS-SP1
Security Advisory
openeuler-security@openeuler.org
openEuler security committee
openEuler-SA-2021-1170
Final
1.0
1.0
2021-05-06
Initial
2021-05-06
2021-05-06
openEuler SA Tool V1.0
2021-05-06
curl security update
An update for curl is now available for openEuler-20.03-LTS-SP1.
cURL is a computer software project providing a library (libcurl) and command-line tool (curl) for transferring data using various protocols.
Security Fix(es):
curl 7.63.0 to and including 7.75.0 includes vulnerability that allows a malicious HTTPS proxy to MITM a connection due to bad handling of TLS 1.3 session tickets. When using a HTTPS proxy and TLS 1.3, libcurl can confuse session tickets arriving from the HTTPS proxy but work as if they arrived from the remote server and then wrongly "short-cut" the host handshake. When confusing the tickets, a HTTPS proxy can trick libcurl to use the wrong session ticket resume for the host and thereby circumvent the server TLS certificate check and make a MITM attack to be possible to perform unnoticed. Note that such a malicious HTTPS proxy needs to provide a certificate that curl will accept for the MITMed server for an attack to work - unless curl has been told to ignore the server certificate check.(CVE-2021-22890)
curl 7.1.1 to and including 7.75.0 is vulnerable to an "Exposure of Private Personal Information to an Unauthorized Actor" by leaking credentials in the HTTP Referer: header. libcurl does not strip off user credentials from the URL when automatically populating the Referer: HTTP request header field in outgoing HTTP requests, and therefore risks leaking sensitive data to the server that is the target of the second HTTP request.(CVE-2021-22876)
An update for curl is now available for openEuler-20.03-LTS-SP1.
openEuler Security has rated this update as having a security impact of medium. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section.
Medium
curl
https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1170
https://openeuler.org/en/security/cve/detail.html?id=CVE-2021-22890
https://openeuler.org/en/security/cve/detail.html?id=CVE-2021-22876
https://nvd.nist.gov/vuln/detail/CVE-2021-22890
https://nvd.nist.gov/vuln/detail/CVE-2021-22876
openEuler-20.03-LTS-SP1
curl-7.71.1-6.oe1.aarch64.rpm
curl-debugsource-7.71.1-6.oe1.aarch64.rpm
curl-debuginfo-7.71.1-6.oe1.aarch64.rpm
libcurl-devel-7.71.1-6.oe1.aarch64.rpm
libcurl-7.71.1-6.oe1.aarch64.rpm
curl-help-7.71.1-6.oe1.noarch.rpm
curl-7.71.1-6.oe1.src.rpm
curl-debuginfo-7.71.1-6.oe1.x86_64.rpm
libcurl-devel-7.71.1-6.oe1.x86_64.rpm
curl-debugsource-7.71.1-6.oe1.x86_64.rpm
libcurl-7.71.1-6.oe1.x86_64.rpm
curl-7.71.1-6.oe1.x86_64.rpm
curl 7.63.0 to and including 7.75.0 includes vulnerability that allows a malicious HTTPS proxy to MITM a connection due to bad handling of TLS 1.3 session tickets. When using a HTTPS proxy and TLS 1.3, libcurl can confuse session tickets arriving from the HTTPS proxy but work as if they arrived from the remote server and then wrongly "short-cut" the host handshake. When confusing the tickets, a HTTPS proxy can trick libcurl to use the wrong session ticket resume for the host and thereby circumvent the server TLS certificate check and make a MITM attack to be possible to perform unnoticed. Note that such a malicious HTTPS proxy needs to provide a certificate that curl will accept for the MITMed server for an attack to work - unless curl has been told to ignore the server certificate check.
2021-05-06
CVE-2021-22890
openEuler-20.03-LTS-SP1
Low
3.7
AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
curl security update
2021-05-06
https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1170
curl 7.1.1 to and including 7.75.0 is vulnerable to an "Exposure of Private Personal Information to an Unauthorized Actor" by leaking credentials in the HTTP Referer: header. libcurl does not strip off user credentials from the URL when automatically populating the Referer: HTTP request header field in outgoing HTTP requests, and therefore risks leaking sensitive data to the server that is the target of the second HTTP request.
2021-05-06
CVE-2021-22876
openEuler-20.03-LTS-SP1
Medium
5.3
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
curl security update
2021-05-06
https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1170