An update for python-dns is now available for openEuler-22.03-LTS-SP4 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2025-1139 Final 1.0 1.0 2025-02-21 Initial 2025-02-21 2025-02-21 openEuler SA Tool V1.0 2025-02-21 python-dns security update An update for python-dns is now available for openEuler-22.03-LTS-SP4 \ Security Fix(es): eventlet before 0.35.2, as used in dnspython before 2.6.0, allows remote attackers to interfere with DNS name resolution by quickly sending an invalid packet from the expected IP address and source port, aka a "TuDoor" attack. In other words, dnspython does not have the preferred behavior in which the DNS name resolution algorithm would proceed, within the full time window, in order to wait for a valid packet. NOTE: dnspython 2.6.0 is unusable for a different reason that was addressed in 2.6.1.(CVE-2023-29483) An update for python-dns is now available for openEuler-22.03-LTS-SP4. 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 python-dns https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1139 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2023-29483 https://nvd.nist.gov/vuln/detail/CVE-2023-29483 openEuler-22.03-LTS-SP4 python-dns-2.2.1-3.oe2203sp4.src.rpm python-dns-help-2.2.1-3.oe2203sp4.noarch.rpm python3-dns-2.2.1-3.oe2203sp4.noarch.rpm eventlet before 0.35.2, as used in dnspython before 2.6.0, allows remote attackers to interfere with DNS name resolution by quickly sending an invalid packet from the expected IP address and source port, aka a "TuDoor" attack. In other words, dnspython does not have the preferred behavior in which the DNS name resolution algorithm would proceed, within the full time window, in order to wait for a valid packet. NOTE: dnspython 2.6.0 is unusable for a different reason that was addressed in 2.6.1. 2025-02-21 CVE-2023-29483 openEuler-22.03-LTS-SP4 Medium 5.9 AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H python-dns security update 2025-02-21 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1139