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FreeBSD: (Multiple Advisories) (CVE-2017-7805): mozilla -- multiple vulnerabilities

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FreeBSD: (Multiple Advisories) (CVE-2017-7805): mozilla -- multiple vulnerabilities

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
09/28/2017
Created
07/25/2018
Added
09/29/2017
Modified
08/17/2018

Description

During TLS 1.2 exchanges, handshake hashes are generated which point to a message buffer. This saved data is used for later messages but in some cases, the handshake transcript can exceed the space available in the current buffer, causing the allocation of a new buffer. This leaves a pointer pointing to the old, freed buffer, resulting in a use-after-free when handshake hashes are then calculated afterwards. This can result in a potentially exploitable crash. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4.

Solution(s)

  • freebsd-upgrade-package-firefox
  • freebsd-upgrade-package-firefox-esr
  • freebsd-upgrade-package-libxul
  • freebsd-upgrade-package-linux-c6-nss
  • freebsd-upgrade-package-linux-c7-nss
  • freebsd-upgrade-package-linux-firefox
  • freebsd-upgrade-package-linux-seamonkey
  • freebsd-upgrade-package-linux-thunderbird
  • freebsd-upgrade-package-nss
  • freebsd-upgrade-package-seamonkey
  • freebsd-upgrade-package-thunderbird

References

  • 101059
  • 1039465
  • RHSA-2017:2832
  • GLSA-201803-14
  • DSA-3987
  • DSA-3998
  • DSA-4014
  • CVE-2017-7805
  • USN-3431-1
  • USN-3435-1
  • USN-3435-2
  • USN-3436-1
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