CVE-2018-20783: Buffer Overflow
First published: Mon Nov 12 2018(Updated: )
Fixed bug (Heap Buffer Overflow (READ: 4) in phar_parse_pharfile). (CVE-2018-20783)
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/rh-php71-php | <0:7.1.30-1.el7 | 0:7.1.30-1.el7 |
| redhat/rh-php72-php | <0:7.2.24-1.el7 | 0:7.2.24-1.el7 |
| redhat/php | <5.6.39 | 5.6.39 |
| redhat/php | <7.0.33 | 7.0.33 |
| redhat/php | <7.1.25 | 7.1.25 |
| redhat/php | <7.2.13 | 7.2.13 |
| redhat/php | <7.3.0 | 7.3.0 |
| debian/php5 | ||
| debian/php7.0 | ||
| debian/php7.3 | ||
| PHP | <7.0.33 | 7.0.33 |
| PHP | <5.6.39 | |
| PHP | >=7.0.0<7.0.33 | |
| PHP | >=7.1.0<7.1.25 | |
| PHP | >=7.2.0<7.2.13 | |
| openSUSE | =42.3 |
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2018-20783 https://nvd.nist.gov/vuln/detail/CVE-2018-20783
- https://bugzilla.redhat.com/show_bug.cgi?id=1680545
- https://access.redhat.com/errata/RHSA-2020:1624
- https://access.redhat.com/errata/RHSA-2019:2519
- https://access.redhat.com/errata/RHSA-2019:3299
- https://access.redhat.com/security/cve/cve-2018-20783
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00083.html
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00104.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00041.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00044.html
- http://php.net/ChangeLog-5.php
- http://php.net/ChangeLog-7.php
- https://bugs.php.net/bug.php?id=77143
- https://usn.ubuntu.com/3566-2/
- https://launchpad.net/bugs/cve/CVE-2018-20783
- https://www.php.net/ChangeLog-7.php#7.0.33 (Advisory)
- http://git.php.net/?p=php-src.git;a=commitdiff;h=e7c8e6cde021afd637ea535b0641a1851e57fb2a
- https://security-tracker.debian.org/tracker/CVE-2018-20783
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20783
- https://nvd.nist.gov/vuln/detail/CVE-2018-20783
- https://ubuntu.com/security/CVE-2018-20783
Parent vulnerabilities
(Appears in the following advisories)
Frequently Asked Questions
What is CVE-2018-20783?
CVE-2018-20783 is a fixed bug that involves a heap buffer overflow in the phar_parse_pharfile function in PHP.
How does CVE-2018-20783 affect PHP?
CVE-2018-20783 affects PHP versions before 5.6.39, 7.x before 7.0.33, 7.1.x before 7.1.25, and 7.2.x before 7.2.13.
What is the severity of CVE-2018-20783?
The severity of CVE-2018-20783 is high, with a severity score of 7.5.
How can I fix CVE-2018-20783?
To fix CVE-2018-20783, upgrade PHP to version 5.6.39, 7.0.33, 7.1.25, or 7.2.13.
Where can I find more information about CVE-2018-20783?
You can find more information about CVE-2018-20783 at the following references: [link 1](https://bugs.php.net/bug.php?id=77143), [link 2](http://git.php.net/?p=php-src.git;a=commitdiff;h=e7c8e6cde021afd637ea535b0641a1851e57fb2a), [link 3](https://access.redhat.com/errata/RHSA-2019:2519).
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