CVE-2020-1967
CVE-2020-1967 · Segmentation fault in SSL_check_chain
Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.
Cette page présente une partie des faits des sources. Consultez les avis liés pour la description complète et les versions concernées.
Server or client applications that call the SSL_check_chain() function during or after a TLS 1.3 handshake may crash due to a NULL pointer dereference as a result of incorrect handling of the "signature_algorithms_cert" TLS extension. The crash occurs if an invalid or unrecognised signature algorithm is received from the peer. This could be exploited by a malicious peer in a Denial of Service attack. OpenSSL version 1.1.1d, 1.1.1e, and 1.1.1f are affected by this issue. This issue did not affect OpenSSL versions prior to 1.1.1d. Fixed in OpenSSL 1.1.1g (Affected 1.1.1d-1.1.1f).
CVSS 7.5 · Élevée · EPSS 53,3% · Correctif disponible
- Publication
- Mise à jour
Pile logicielle: system · network
Produits et versions concernés
openssl
- Versions du logiciel
- Fixed in OpenSSL 1.1.1g (Affected 1.1.1d-1.1.1f): Concernée
Aucun correctif publié
openssl Debian:12
- Plages de versions concernées
- ECOSYSTEM: < 1.1.1g-1
Mettez à jour vers 1.1.1g-1
openssl Debian:13
- Plages de versions concernées
- ECOSYSTEM: < 1.1.1g-1
Mettez à jour vers 1.1.1g-1
openssl Debian:14
- Plages de versions concernées
- ECOSYSTEM: < 1.1.1g-1
Mettez à jour vers 1.1.1g-1
openssl Ubuntu:20.04:LTS
- Versions du logiciel
- 1.1.1c-1ubuntu4
- 1.1.1d-2ubuntu3
- 1.1.1d-2ubuntu6
- 1.1.1f-1ubuntu1
- Plages de versions concernées
- ECOSYSTEM: < 1.1.1f-1ubuntu2
Mettez à jour vers 1.1.1f-1ubuntu2
Sources originales
- https://security.FreeBSD.org/advisories/FreeBSD-SA-20:11.openssl.asc
- https://www.debian.org/security/2020/dsa-4661
- http://www.openwall.com/lists/oss-security/2020/04/22/2
- https://lists.apache.org/thread.html/r9a41e304992ce6aec6585a87842b4f2e692604f5c892c37e3b0587ee%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/r66ea9c436da150683432db5fbc8beb8ae01886c6459ac30c2cea7345%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/r94d6ac3f010a38fccf4f432b12180a13fa1cf303559bd805648c9064%40%3Cdev.tomcat.apache.org%3E
- https://security.gentoo.org/glsa/202004-10
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XVEP3LAK4JSPRXFO4QF4GG2IVXADV3SO/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DDHOAATPWJCXRNFMJ2SASDBBNU5RJONY/
- http://seclists.org/fulldisclosure/2020/May/5
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EXDDAOWSAIEFQNBHWYE6PPYFV4QXGMCD/
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00004.html
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00011.html
- https://www.oracle.com/security-alerts/cpujul2020.html
- https://www.tenable.com/security/tns-2020-03
- https://www.openssl.org/news/secadv/20200421.txt
- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=eb563247aef3e83dda7679c43f9649270462e5b1
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44440
- https://security.netapp.com/advisory/ntap-20200424-0003/
- https://www.synology.com/security/advisory/Synology_SA_20_05_OpenSSL
- https://github.com/irsl/CVE-2020-1967
- http://packetstormsecurity.com/files/157527/OpenSSL-signature_algorithms_cert-Denial-Of-Service.html
- https://www.synology.com/security/advisory/Synology_SA_20_05
- https://nvd.nist.gov/vuln/detail/CVE-2020-1967