Описание
In dnsmasq before 2.78, if the DNS packet size does not match the expected size, the size parameter in a memset call gets a negative value. As it is an unsigned value, memset ends up writing up to 0xffffffff zero's (0xffffffffffffffff in 64 bit platforms), making dnsmasq crash.
In dnsmasq before 2.78, if the DNS packet size does not match the expected size, the size parameter in a memset call gets a negative value. As it is an unsigned value, memset ends up writing up to 0xffffffff zero's (0xffffffffffffffff in 64 bit platforms), making dnsmasq crash.
Ссылки
- https://nvd.nist.gov/vuln/detail/CVE-2017-13704
- https://access.redhat.com/security/vulnerabilities/3199382
- https://cert-portal.siemens.com/productcert/pdf/ssa-689071.pdf
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4TK6DWC53WSU6633EVZL7H4PCWBYHMHK
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4TK6DWC53WSU6633EVZL7H4PCWBYHMHK
- https://security.googleblog.com/2017/10/behind-masq-yet-more-dns-and-dhcp.html
- https://www.mail-archive.com/dnsmasq-discuss%40lists.thekelleys.org.uk/msg11664.html
- https://www.mail-archive.com/dnsmasq-discuss%40lists.thekelleys.org.uk/msg11665.html
- https://www.mail-archive.com/dnsmasq-discuss@lists.thekelleys.org.uk/msg11664.html
- https://www.mail-archive.com/dnsmasq-discuss@lists.thekelleys.org.uk/msg11665.html
- https://www.synology.com/support/security/Synology_SA_17_59_Dnsmasq
- http://thekelleys.org.uk/dnsmasq/CHANGELOG
- http://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=63437ffbb58837b214b4b92cb1c54bc5f3279928
- http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=63437ffbb58837b214b4b92cb1c54bc5f3279928
- http://www.securityfocus.com/bid/101085
- http://www.securityfocus.com/bid/101977
- http://www.securitytracker.com/id/1039474
Связанные уязвимости
In dnsmasq before 2.78, if the DNS packet size does not match the expected size, the size parameter in a memset call gets a negative value. As it is an unsigned value, memset ends up writing up to 0xffffffff zero's (0xffffffffffffffff in 64 bit platforms), making dnsmasq crash.
In dnsmasq before 2.78, if the DNS packet size does not match the expected size, the size parameter in a memset call gets a negative value. As it is an unsigned value, memset ends up writing up to 0xffffffff zero's (0xffffffffffffffff in 64 bit platforms), making dnsmasq crash.
In dnsmasq before 2.78, if the DNS packet size does not match the expected size, the size parameter in a memset call gets a negative value. As it is an unsigned value, memset ends up writing up to 0xffffffff zero's (0xffffffffffffffff in 64 bit platforms), making dnsmasq crash.
In dnsmasq before 2.78, if the DNS packet size does not match the expe ...
Уязвимость функции memset() DNS-сервера Dnsmasq, позволяющая нарушителю вызвать отказ в обслуживании