CVE-2017-7805

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.
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Configurations

Configuration 1 (hide)

OR cpe:2.3:a:mozilla:firefox:56.0:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:52.4.0:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:52.4.0:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Information

Published : 2018-06-11 14:29

Updated : 2018-10-16 18:30


NVD link : CVE-2017-7805

Mitre link : CVE-2017-7805


JSON object : View

CWE
CWE-416

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Products Affected

mozilla

  • firefox
  • firefox_esr
  • thunderbird

debian

  • debian_linux