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