CVE-2018-19935: Null Pointer Dereference
First published: Fri Dec 07 2018(Updated: )
ext/imap/php_imap.c in PHP 5.x and 7.x before 7.3.0 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an empty string in the message argument to the imap_mail function.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/php7.3 | 7.3.31-1~deb10u1 7.3.31-1~deb10u5 | |
| PHP | >=5.6.0<5.6.39 | |
| PHP | >=7.0.0<7.0.33 | |
| PHP | >=7.1.0<7.1.26 | |
| PHP | >=7.2.0<7.2.14 | |
| Debian Linux | =8.0 | |
| Debian Linux | =9.0 |
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Reference Links
- https://bugs.php.net/bug.php?id=77020
- https://git.php.net/?p=php-src.git;a=commit;h=648fc1e369fc05fb9200a42c7938912236b2a318
- https://security-tracker.debian.org/tracker/CVE-2018-19935
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00041.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00044.html
- http://www.securityfocus.com/bid/106143
- https://lists.debian.org/debian-lts-announce/2018/12/msg00006.html
- https://security.netapp.com/advisory/ntap-20181221-0003/
- https://www.debian.org/security/2018/dsa-4353
Frequently Asked Questions
What is the severity of CVE-2018-19935?
CVE-2018-19935 has been classified as a denial of service vulnerability that can result in an application crash.
How do I fix CVE-2018-19935?
To fix CVE-2018-19935, upgrade to PHP version 7.3.0 or later.
Which versions of PHP are affected by CVE-2018-19935?
CVE-2018-19935 affects PHP versions prior to 7.3.0, including 5.x and 7.x versions up to 7.2.14.
What does CVE-2018-19935 exploit?
CVE-2018-19935 exploits the imap_mail function by allowing a denial of service through a NULL pointer dereference.
Is CVE-2018-19935 a local or remote vulnerability?
CVE-2018-19935 is a remote vulnerability that allows attackers to crash the application from a remote location.
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