An update for golang is now available for openEuler-22.03-LTS Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2023-1530 Final 1.0 1.0 2023-08-26 Initial 2023-08-26 2023-08-26 openEuler SA Tool V1.0 2023-08-26 golang security update An update for golang is now available for openEuler-22.03-LTS. The Go Programming Language. Security Fix(es): Extremely large RSA keys in certificate chains can cause a client/server to expend significant CPU time verifying signatures. With fix, the size of RSA keys transmitted during handshakes is restricted to <= 8192 bits. Based on a survey of publicly trusted RSA keys, there are currently only three certificates in circulation with keys larger than this, and all three appear to be test certificates that are not actively deployed. It is possible there are larger keys in use in private PKIs, but we target the web PKI, so causing breakage here in the interests of increasing the default safety of users of crypto/tls seems reasonable.(CVE-2023-29409) An update for golang is now available for openEuler-22.03-LTS. 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 golang https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1530 https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2023-29409 https://nvd.nist.gov/vuln/detail/CVE-2023-29409 openEuler-22.03-LTS golang-1.17.3-21.oe2203.aarch64.rpm golang-devel-1.17.3-21.oe2203.noarch.rpm golang-devel-1.17.3-21.oe2203.noarch.rpm golang-help-1.17.3-21.oe2203.noarch.rpm golang-help-1.17.3-21.oe2203.noarch.rpm golang-1.17.3-21.oe2203.src.rpm golang-1.17.3-21.oe2203.src.rpm golang-1.17.3-21.oe2203.x86_64.rpm Extremely large RSA keys in certificate chains can cause a client/server to expend significant CPU time verifying signatures. With fix, the size of RSA keys transmitted during handshakes is restricted to <= 8192 bits. Based on a survey of publicly trusted RSA keys, there are currently only three certificates in circulation with keys larger than this, and all three appear to be test certificates that are not actively deployed. It is possible there are larger keys in use in private PKIs, but we target the web PKI, so causing breakage here in the interests of increasing the default safety of users of crypto/tls seems reasonable. 2023-08-26 CVE-2023-29409 openEuler-22.03-LTS Medium 5.3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L golang security update 2023-08-26 https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1530