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CVE-2017-7781

Published: 10 August 2017

An error occurs in the elliptic curve point addition algorithm that uses mixed Jacobian-affine coordinates where it can yield a result "POINT_AT_INFINITY" when it should not. A man-in-the-middle attacker could use this to interfere with a connection, resulting in an attacked party computing an incorrect shared secret. This vulnerability affects Firefox < 55.

Priority

Medium

CVSS 3 base score: 5.9

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
artful
Released (55.0.2+build1-0ubuntu4)
bionic
Released (55.0.2+build1-0ubuntu4)
cosmic
Released (55.0.2+build1-0ubuntu4)
disco
Released (55.0.2+build1-0ubuntu4)
eoan
Released (55.0.2+build1-0ubuntu4)
focal
Released (55.0.2+build1-0ubuntu4)
groovy
Released (55.0.2+build1-0ubuntu4)
hirsute
Released (55.0.2+build1-0ubuntu4)
impish
Released (55.0.2+build1-0ubuntu4)
jammy
Released (55.0.2+build1-0ubuntu4)
precise Does not exist

trusty Does not exist
(trusty was released [55.0.1+build2-0ubuntu0.14.04.2])
upstream
Released (55.0)
xenial
Released (55.0.1+build2-0ubuntu0.16.04.2)
zesty
Released (55.0.1+build2-0ubuntu0.17.04.2)
mozjs38
Launchpad, Ubuntu, Debian
artful Ignored
(reached end-of-life)
bionic Needs triage

cosmic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

zesty Ignored
(reached end-of-life)

Notes

AuthorNote
tyhicks
mozjs38 contains a copy of the SpiderMonkey JavaScript engine

References

Bugs