USN-4267-1: ARM mbed TLS vulnerabilities<\/p>\n
A security issue affects these releases of Ubuntu and its derivatives:<\/p>\n
Several security issues were fixed in mbedtls.<\/p>\n
It was discovered that mbedtls has a bounds-check bypass through an integer
\noverflow that can be used by an attacked to execute arbitrary code or cause a
\ndenial of service.
\n(CVE-2017-18187)<\/p>\n
It was discovered that mbedtls has a vulnerability where an attacker could
\nexecute arbitrary code or cause a denial of service (buffer overflow)
\nvia a crafted certificate chain that is mishandled during RSASSA-PSS
\nsignature verification within a TLS or DTLS session.
\n(CVE-2018-0487)<\/p>\n
It was discovered that mbedtls has a vulnerability where an attacker could
\nexecute arbitrary code or cause a denial of service (heap corruption) via a
\ncrafted application packet within a TLS or DTLS session.
\n(CVE-2018-0488)<\/p>\n
It was discovered that mbedtls has a vulnerability that allows remote
\nattackers to achieve partial plaintext recovery (for a CBC based ciphersuite)
\nvia a timing-based side-channel attack.
\n(CVE-2018-0497)<\/p>\n
It was discovered that mbedtls has a vulnerability that allows local users to
\nachieve partial plaintext recovery (for a CBC based ciphersuite) via a
\ncache-based side-channel attack.
\n(CVE-2018-0498)<\/p>\n
The problem can be corrected by updating your system to the following package versions:<\/p>\n
To update your system, please follow these instructions: https:\/\/wiki.ubuntu.com\/Security\/Upgrades<\/a>.<\/p>\n In general, a standard system update will make all the necessary changes.<\/p>\n Source: USN-4267-1: ARM mbed TLS vulnerabilities<\/a><\/p>\n","protected":false},"excerpt":{"rendered":" USN-4267-1: ARM mbed TLS vulnerabilities mbedtls vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 16.04 LTS Summary Several security issues were fixed in mbedtls. Software Description mbedtls – lightweight crypto and SSL\/TLS library – crypto library Details It was discovered that mbedtls has a bounds-check bypass through an integer overflow that can be used by an attacked to execute arbitrary code or cause a denial of service. (CVE-2017-18187) It was discovered that mbedtls has a vulnerability where an attacker could execute arbitrary code or cause a denial of service (buffer overflow) via a crafted certificate chain that is mishandled during RSASSA-PSS signature verification within a TLS or DTLS session. (CVE-2018-0487) It was discovered that mbedtls has a vulnerability where an attacker could execute arbitrary code or cause a denial of service (heap corruption) via a [ more… ]<\/a><\/p>\n<\/div>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[586],"tags":[587],"class_list":["post-35396","post","type-post","status-publish","format-standard","hentry","category-ubuntu-usn","tag-ubuntu-usn"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts\/35396","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/comments?post=35396"}],"version-history":[{"count":1,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts\/35396\/revisions"}],"predecessor-version":[{"id":35397,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/posts\/35396\/revisions\/35397"}],"wp:attachment":[{"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/media?parent=35396"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/categories?post=35396"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jirak.net\/wp\/wp-json\/wp\/v2\/tags?post=35396"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}References<\/h2>\n
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