| Name | CVE-2020-7064 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-2188-1, DSA-4717-1, DSA-4719-1, ELA-227-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| php5 (PTS) | jessie, jessie (lts) | 5.6.40+dfsg-0+deb8u21 | fixed |
| php7.0 (PTS) | stretch (security) | 7.0.33-0+deb9u12 | fixed |
| stretch (lts), stretch | 7.0.33-0+deb9u19 | fixed | |
| php7.3 (PTS) | buster, buster (lts) | 7.3.31-1~deb10u8 | fixed |
| buster (security) | 7.3.31-1~deb10u7 | fixed | |
| php7.4 (PTS) | bullseye | 7.4.33-1+deb11u5 | fixed |
| bullseye (security) | 7.4.33-1+deb11u6 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| php5 | source | wheezy | 5.4.45-0+deb7u29 | ELA-227-1 | ||
| php5 | source | jessie | 5.6.40+dfsg-0+deb8u11 | DLA-2188-1 | ||
| php5 | source | (unstable) | (unfixed) | |||
| php7.0 | source | stretch | 7.0.33-0+deb9u8 | DSA-4717-1 | ||
| php7.0 | source | (unstable) | (unfixed) | |||
| php7.3 | source | buster | 7.3.19-1~deb10u1 | DSA-4719-1 | ||
| php7.3 | source | (unstable) | (unfixed) | |||
| php7.4 | source | (unstable) | 7.4.5-1 |
Fixed in PHP 7.4.4, 7.3.16, 7.2.29
PHP Bug: https://bugs.php.net/79282
https://git.php.net/?p=php-src.git;a=commit;h=25238bdf6005b85ab844aa2b743b589dfce9f0d2