Out-of-bounds Read in PHP
CVE-2020-7064
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L.
EPSS exploit prediction
EPSS: 0.043 (90.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 90.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.043 · newest: 0.043 · change: 0.000
Affected products
- PHP
- PHP Group — versions 7.3.x, 7.4.x, 7.2.x
- Tenable Tenable.sc
- Canonical Ubuntu Linux — versions 12.04, 14.04, 16.04
- Debian Linux — versions 8.0, 9.0, 10.0
- openSUSE Leap — versions 15.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.debian.org/debian-lts-announce/2020/04/msg00021.html (mailing-list, Mailing List, Third Party Advisory)
- usn.ubuntu.com/4330-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4330-2/ (vendor-advisory, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-05/msg00025.html (vendor-advisory, Mailing List, Third Party Advisory)
- www.debian.org/security/2020/dsa-4717 (vendor-advisory, Third Party Advisory)
- www.debian.org/security/2020/dsa-4719 (vendor-advisory, Third Party Advisory)
- bugs.php.net/bug.php (Exploit, Patch, Issue Tracking, Vendor Advisory)
- security.netapp.com/advisory/ntap-20200403-0001/ (Third Party Advisory)
- www.oracle.com/security-alerts/cpujan2021.html (Third Party Advisory)
- www.tenable.com/security/tns-2021-14 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-7064?
- CVE-2020-7064 is a medium-severity vulnerability in PHP, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2020-04-01.
- How severe is CVE-2020-7064?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2020-7064 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.