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CVE-2020-7064

Published: 1 April 2020

In PHP versions 7.2.x below 7.2.9, 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while parsing EXIF data with exif_read_data() function, it is possible for malicious data to cause PHP to read one byte of uninitialized memory. This could potentially lead to information disclosure or crash.

Notes

AuthorNote
sbeattie
PEAR issues should go against php-pear as of xenial

Priority

Medium

Cvss 3 Severity Score

5.4

Score breakdown

Status

Package Release Status
php7.3
Launchpad, Ubuntu, Debian
xenial Does not exist

bionic Does not exist

trusty Does not exist

upstream Needs triage

eoan
Released (7.3.11-0ubuntu0.19.10.4)
focal Does not exist

php5
Launchpad, Ubuntu, Debian
bionic Does not exist

eoan Does not exist

focal Does not exist

trusty
Released (5.5.9+dfsg-1ubuntu4.29+esm11)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
upstream Needs triage

xenial Does not exist

Patches:
upstream: https://github.com/microsoft/php-src/commit/5ac3ebcd4f9509d1a7e54f30117227822fbc0648#diff-c163453976b65334f071d1d4f976ef45
php7.0
Launchpad, Ubuntu, Debian
bionic Does not exist

eoan Does not exist

focal Does not exist

trusty Does not exist

upstream Needs triage

xenial
Released (7.0.33-0ubuntu0.16.04.14)
php7.2
Launchpad, Ubuntu, Debian
bionic
Released (7.2.24-0ubuntu0.18.04.4)
eoan Does not exist

focal Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

php7.4
Launchpad, Ubuntu, Debian
bionic Does not exist

eoan Does not exist

focal
Released (7.4.3-4ubuntu1.1)
trusty Does not exist

upstream
Released (7.4.4)
xenial Does not exist

Severity score breakdown

Parameter Value
Base score 5.4
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality Low
Integrity impact None
Availability impact Low
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L