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CVE-2023-50387 #17
AtomGit-Bot创建于  2024年2月21日
AtomGit-Bot
2024年2月21日 创建

一、漏洞信息
漏洞编号:CVE-2023-50387
漏洞归属组件:dnsmasq
漏洞归属的版本:2.82,2.85,2.86,2.88,2.89,2.90
CVSS V3.0分值:
BaseScore:7.5 High
Vector:CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
漏洞简述:
Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the KeyTrap issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records.
漏洞公开时间:2024-02-15 00:15:45
漏洞创建时间:2024-02-20 17:40:04
漏洞详情参考链接:
https://nvd.nist.gov/vuln/detail/CVE-2023-50387

更多参考(点击展开)
参考来源 参考链接 来源链接
cve.mitre.org http://www.openwall.com/lists/oss-security/2024/02/16/2
cve.mitre.org http://www.openwall.com/lists/oss-security/2024/02/16/3
cve.mitre.org https://access.redhat.com/security/cve/CVE-2023-50387
cve.mitre.org https://bugzilla.suse.com/show_bug.cgi?id=1219823
cve.mitre.org https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-01.html
cve.mitre.org https://gitlab.nic.cz/knot/knot-resolver/-/releases/v5.7.1
cve.mitre.org https://kb.isc.org/docs/cve-2023-50387
cve.mitre.org https://lists.debian.org/debian-lts-announce/2024/02/msg00006.html
cve.mitre.org https://lists.debian.org/debian-lts-announce/2024/05/msg00011.html
cve.mitre.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6FV5O347JTX7P5OZA6NGO4MKTXRXMKOZ/
cve.mitre.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/
cve.mitre.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/
cve.mitre.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGSLGKUAQTW5JPPZCMF5YPEYALLRUZZ6/
cve.mitre.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/
cve.mitre.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/
cve.mitre.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVYA42BLXUCIDLD35YIJPJSHDIADNYMP/
cve.mitre.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TEXGOYGW7DBS3N2QSSQONZ4ENIRQEAPG/
cve.mitre.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQESRWMJCF4JEYJEAKLRM6CT55GLJAB7/
cve.mitre.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/
cve.mitre.org https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html
cve.mitre.org https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-50387
cve.mitre.org https://news.ycombinator.com/item?id=39367411
cve.mitre.org https://news.ycombinator.com/item?id=39372384
cve.mitre.org https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/
cve.mitre.org https://security.netapp.com/advisory/ntap-20240307-0007/
cve.mitre.org https://www.athene-center.de/aktuelles/key-trap
cve.mitre.org https://www.athene-center.de/fileadmin/content/PDF/Technical_Report_KeyTrap.pdf
cve.mitre.org https://www.isc.org/blogs/2024-bind-security-release/
cve.mitre.org https://www.securityweek.com/keytrap-dns-attack-could-disable-large-parts-of-internet-researchers/
cve.mitre.org https://www.theregister.com/2024/02/13/dnssec_vulnerability_internet/
redhat_bugzilla https://fosstodon.org/@tychotithonus@infosec.exchange/111924626751024210 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://github.com/NLnetLabs/unbound/releases/tag/release-1.19.1 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://kb.isc.org/docs/cve-2023-50387 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://www.athene-center.de/en/news/press/key-trap https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://www.knot-resolver.cz/2024-02-13-knot-resolver-5.7.1.html https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://labs.ripe.net/author/haya-shulman/keytrap-algorithmic-complexity-attacks-exploit-fundamental-design-flaw-in-dnssec/ https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://lists.dns-oarc.net/pipermail/dns-operations/2024-February/022436.html https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://www.isc.org/blogs/2024-bind-security-release/ https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://access.redhat.com/errata/RHSA-2024:0965 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://access.redhat.com/errata/RHSA-2024:0977 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://access.redhat.com/errata/RHSA-2024:0981 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://access.redhat.com/errata/RHSA-2024:0982 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://access.redhat.com/errata/RHSA-2024:1334 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://access.redhat.com/errata/RHSA-2024:1335 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://access.redhat.com/errata/RHSA-2024:1522 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://access.redhat.com/errata/RHSA-2024:1543 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://access.redhat.com/errata/RHSA-2024:1544 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://access.redhat.com/errata/RHSA-2024:1545 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://access.redhat.com/errata/RHSA-2024:1647 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://access.redhat.com/errata/RHSA-2024:1648 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://access.redhat.com/errata/RHSA-2024:1781 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://access.redhat.com/errata/RHSA-2024:1782 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://access.redhat.com/errata/RHSA-2024:1789 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://access.redhat.com/errata/RHSA-2024:1801 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://access.redhat.com/errata/RHSA-2024:1800 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://access.redhat.com/errata/RHSA-2024:1804 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://access.redhat.com/errata/RHSA-2024:1803 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://access.redhat.com/errata/RHSA-2024:2551 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://access.redhat.com/errata/RHSA-2024:2587 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://access.redhat.com/errata/RHSA-2024:2696 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://access.redhat.com/errata/RHSA-2024:2720 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://access.redhat.com/errata/RHSA-2024:2721 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://access.redhat.com/errata/RHSA-2024:2821 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://access.redhat.com/errata/RHSA-2024:2890 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://access.redhat.com/errata/RHSA-2024:3271 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://access.redhat.com/errata/RHSA-2024:3741 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://access.redhat.com/errata/RHSA-2024:3877 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://access.redhat.com/errata/RHSA-2024:3929 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://access.redhat.com/errata/RHSA-2024:11003 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
redhat_bugzilla https://access.redhat.com/errata/RHSA-2025:0039 https://bugzilla.redhat.com/show_bug.cgi?id=2263914
ubuntu https://kb.isc.org/docs/cve-2023-50387 https://ubuntu.com/security/CVE-2023-50387
ubuntu https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html https://ubuntu.com/security/CVE-2023-50387
ubuntu https://www.knot-resolver.cz/2024-02-13-knot-resolver-5.7.1.html https://ubuntu.com/security/CVE-2023-50387
ubuntu https://blog.powerdns.com/2024/02/13/powerdns-recursor-4-8-6-4-9-3-5-0-2-released https://ubuntu.com/security/CVE-2023-50387
ubuntu https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/ https://ubuntu.com/security/CVE-2023-50387
ubuntu https://nlnetlabs.nl/downloads/unbound/CVE-2023-50387_CVE-2023-50868.txt https://ubuntu.com/security/CVE-2023-50387
ubuntu https://ubuntu.com/security/notices/USN-6633-1 https://ubuntu.com/security/CVE-2023-50387
ubuntu https://ubuntu.com/security/notices/USN-6642-1 https://ubuntu.com/security/CVE-2023-50387
ubuntu https://ubuntu.com/security/notices/USN-6657-1 https://ubuntu.com/security/CVE-2023-50387
ubuntu https://ubuntu.com/security/notices/USN-6665-1 https://ubuntu.com/security/CVE-2023-50387
ubuntu https://ubuntu.com/security/notices/USN-6723-1 https://ubuntu.com/security/CVE-2023-50387
ubuntu https://www.cve.org/CVERecord?id=CVE-2023-50387 https://ubuntu.com/security/CVE-2023-50387
ubuntu https://ubuntu.com/security/notices/USN-6657-2 https://ubuntu.com/security/CVE-2023-50387
ubuntu https://nvd.nist.gov/vuln/detail/CVE-2023-50387 https://ubuntu.com/security/CVE-2023-50387
ubuntu https://launchpad.net/bugs/cve/CVE-2023-50387 https://ubuntu.com/security/CVE-2023-50387
ubuntu https://security-tracker.debian.org/tracker/CVE-2023-50387 https://ubuntu.com/security/CVE-2023-50387
debian https://security-tracker.debian.org/tracker/CVE-2023-50387
bind https://kb.isc.org/v1/docs/cve-2023-50387
gentoo https://security.gentoo.org/glsa/202412-10
anolis https://anas.openanolis.cn/cves/detail/CVE-2023-50387
cve_search https://www.athene-center.de/aktuelles/key-trap
cve_search https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/
cve_search https://kb.isc.org/docs/cve-2023-50387
cve_search https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-01.html
cve_search https://www.theregister.com/2024/02/13/dnssec_vulnerability_internet/
cve_search https://news.ycombinator.com/item?id=39367411
cve_search https://www.securityweek.com/keytrap-dns-attack-could-disable-large-parts-of-internet-researchers/
cve_search https://www.isc.org/blogs/2024-bind-security-release/
cve_search https://news.ycombinator.com/item?id=39372384

漏洞分析指导链接:
https://gitee.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
漏洞数据来源:
其它
漏洞补丁信息:

详情(点击展开)
影响的包 修复版本 修复补丁 问题引入补丁 来源
https://bugzilla.suse.com/attachment.cgi?id=880530 bugzilla
https://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=3ae7f1ab0d847b17fdc95fd0e5b3120f66dc3af9 snyk
http://www.openwall.com/lists/oss-security/2024/02/16/2 nvd
http://www.openwall.com/lists/oss-security/2024/02/16/3 nvd
https://access.redhat.com/security/cve/CVE-2023-50387 nvd
https://bugzilla.suse.com/show_bug.cgi?id=1219823 nvd
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-01.html nvd
https://gitlab.nic.cz/knot/knot-resolver/-/releases/v5.7.1 nvd
https://kb.isc.org/docs/cve-2023-50387 nvd
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/ nvd
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/ nvd
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVYA42BLXUCIDLD35YIJPJSHDIADNYMP/ nvd
https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html nvd
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-50387 nvd
https://news.ycombinator.com/item?id=39367411 nvd
https://news.ycombinator.com/item?id=39372384 nvd
https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/ nvd
https://www.athene-center.de/aktuelles/key-trap nvd
https://www.athene-center.de/fileadmin/content/PDF/Technical_Report_KeyTrap.pdf nvd
https://www.isc.org/blogs/2024-bind-security-release/ nvd
https://www.securityweek.com/keytrap-dns-attack-could-disable-large-parts-of-internet-researchers/ nvd
https://www.theregister.com/2024/02/13/dnssec_vulnerability_internet/ nvd
bind9 https://gitlab.isc.org/isc-projects/bind9/-/commit/c12608ca934c0433d280e65fe6c631013e200cfe ubuntu
bind9 https://gitlab.isc.org/isc-projects/bind9/-/commit/751b7cc4750ede6d8c5232751d60aad8ad84aa67 ubuntu
bind9 https://gitlab.isc.org/isc-projects/bind9/-/commit/6a65a425283d70da86bf732449acd6d7c8dec718 ubuntu
bind9 https://gitlab.isc.org/isc-projects/bind9/-/commit/3d206e918b3efbc20074629ad9d99095fbd2e5fd ubuntu
bind9 https://gitlab.isc.org/isc-projects/bind9/-/commit/a520fbc0470a0d6b72db6aa0b8deda8798551614 ubuntu
https://github.com/PowerDNS/pdns/pull/13781 debian
https://github.com/NLnetLabs/unbound/commit/882903f2fa800c4cb6f5e225b728e2887bb7b9ae debian
https://www.nlnetlabs.nl/downloads/unbound/patch_CVE-2023-50387_CVE-2023-50868.diff unbound

二、漏洞分析结构反馈
影响性分析说明:
即“KeyTrap”攻击,DNS协议(RFC 4033、4034、4035、6840等协议)的某些DNSSEC方面的协议缺陷,允许远程攻击者通过一个或多个DNSSEC响应发动Dos攻击,造成拒绝服务(CPU消耗)。
openEuler评分:
7.5
Vector:CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
受影响版本排查(受影响/不受影响):
1.openEuler-20.03-LTS-SP4(2.82):受影响
2.openEuler-22.03-LTS-SP1(2.86):受影响
3.openEuler-22.03-LTS-SP3(2.86):受影响
4.openEuler-22.03-LTS-SP4(2.86):受影响
5.master(2.90):不受影响
6.openEuler-24.03-LTS(2.90):不受影响
7.openEuler-24.03-LTS-Next(2.90):不受影响
8.openEuler-24.09(2.90):不受影响
9.openEuler-24.03-LTS-SP2(2.90):

修复是否涉及abi变化(是/否):
1.master(2.90):否
2.openEuler-20.03-LTS-SP4(2.82):否
3.openEuler-22.03-LTS-SP1(2.86):否
4.openEuler-22.03-LTS-SP3(2.86):否
5.openEuler-22.03-LTS-SP4(2.86):否
6.openEuler-24.03-LTS(2.90):否
7.openEuler-24.03-LTS-Next(2.90):否
8.openEuler-24.09(2.90):否
9.openEuler-24.03-LTS-SP2(2.90):

原因说明:
1.master(2.90):
2.openEuler-20.03-LTS-SP4(2.82):
3.openEuler-22.03-LTS-SP3(2.86):
4.openEuler-22.03-LTS-SP4(2.86):
5.openEuler-24.03-LTS(2.90):
6.openEuler-24.03-LTS-Next(2.90):
7.openEuler-24.03-LTS-SP1(2.90):
8.openEuler-24.03-LTS-SP2(2.90):

likedislike
AAtomGit-Bot
2024年2月21日 创建了CVE和安全问题
openeuler-ci-bot
openeuler-ci-bot成员
2024年2月21日 评论:

@MrRlu ,@seuzw ,@kircher ,@gebidelidaye ,@zengwefeng ,@robertxw ,@sunsuwan
issue处理注意事项:
1. 当前issue受影响的分支提交pr时, 须在pr描述中填写当前issue编号进行关联, 否则无法关闭当前issue;
2. 模板内容需要填写完整, 无论是受影响或者不受影响都需要填写完整内容,未引入的分支不需要填写, 否则无法关闭当前issue;
3. 以下为模板中需要填写完整的内容, 请复制到评论区回复, 注: 内容的标题名称(影响性分析说明, openEuler评分, 受影响版本排查(受影响/不受影响), 修复是否涉及abi变化(是/否))不能省略,省略后cve-manager将无法正常解析填写内容.


影响性分析说明:

openEuler评分: (评分和向量)

受影响版本排查(受影响/不受影响):
1.master(2.89):
2.openEuler-20.03-LTS-SP1(2.82):
3.openEuler-20.03-LTS-SP4(2.82):
4.openEuler-22.03-LTS(2.86):
5.openEuler-22.03-LTS-Next(2.86):
6.openEuler-22.03-LTS-SP1(2.86):
7.openEuler-22.03-LTS-SP2(2.86):
8.openEuler-22.03-LTS-SP3(2.86):

修复是否涉及abi变化(是/否):
1.master(2.89):
2.openEuler-20.03-LTS-SP1(2.82):
3.openEuler-20.03-LTS-SP4(2.82):
4.openEuler-22.03-LTS(2.86):
5.openEuler-22.03-LTS-Next(2.86):
6.openEuler-22.03-LTS-SP1(2.86):
7.openEuler-22.03-LTS-SP2(2.86):
8.openEuler-22.03-LTS-SP3(2.86):


issue处理具体操作请参考:
https://gitee.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
pr关联issue具体操作请参考:
https://gitee.com/help/articles/4142

likedislike
openeuler-ci-bot
openeuler-ci-bot成员
2024年2月21日 评论:

Hi openMajun_admin, welcome to the openEuler Community.
I'm the Bot here serving you. You can find the instructions on how to interact with me at Here.
If you have any questions, please contact the SIG: Networking, and any of the maintainers: @MrRlu , @seuzw , @kircher , @gebidelidaye , @zengwefeng , @robertxw , @sunsuwan

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openeuler-ci-botopeneuler-ci-bot成员
2024年2月21日 添加了   sig/Networking 标签
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openeuler-ci-bot成员
2024年2月21日 评论:
参考网址 关联pr 状态 补丁链接
https://nvd.nist.gov/vuln/detail/CVE-2023-50387
https://www.opencve.io/cve/CVE-2023-50387
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2023-50387
https://security-tracker.debian.org/tracker/CVE-2023-50387NoneNonehttps://github.com/NLnetLabs/unbound/commit/882903f2fa800c4cb6f5e225b728e2887bb7b9ae

说明:补丁链接仅供初步排查参考,实际可用性请人工再次确认,补丁下载验证可使用CVE补丁工具。
若补丁不准确,烦请在此issue下评论 '/report-patch 参考网址 补丁链接1,补丁链接2' 反馈正确信息,便于我们不断优化工具,不胜感激。
如 /report-patch https://security-tracker.debian.org/tracker/CVE-2021-3997 https://github.com/systemd/systemd/commit/5b1cf7a9be37e20133c0208005274ce4a5b5c6a1

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2024年9月18日 评论:

/reason 社区建议升级到2.90版本。
https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html
低版本无修复补丁,建议通过关闭dnssec功能规避此问题

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2024年9月20日 修改了描述
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2024年9月23日 修改了描述
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2024年9月24日 评论:
issue状态 操作者 原因
已挂起 sun_hai_10 社区建议升级到2.90版本。
https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html
低版本无修复补丁,建议通过关闭dnssec功能规避此问题
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2025年4月14日 修改了描述