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Vulnerability record · CVE-2019-9675 · published 11 March 2019

CVE-2019-9675: Php memory buffer overflow vulnerability

Php · Php

An issue was discovered in PHP 7.x before 7.1.27 and 7.3.x before 7.3.3. phar_tar_writeheaders_int in ext/phar/tar.c has a buffer overflow via a long link value. NOTE: The vendor indicates that the link value is used only when an archive contains a symlink, which currently cannot happen: "This issue allows theoretical compromise of security, but a practical attack is usually impossible.

8.1 CVSS 3.0 High EPSS 6.0% · top 6.9% CWE-119 · Memory buffer overflow
8.1CVSS 3.0 base score, v2 6.8
6.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
16References
17 Jun 2026Last modified by NVD

Description

An issue was discovered in PHP 7.x before 7.1.27 and 7.3.x before 7.3.3. phar_tar_writeheaders_int in ext/phar/tar.c has a buffer overflow via a long link value. NOTE: The vendor indicates that the link value is used only when an archive contains a symlink, which currently cannot happen: "This issue allows theoretical compromise of security, but a practical attack is usually impossible.

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00104.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00012.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-7.php ProductVendor Advisory
https://bugs.php.net/bug.php?id=77586 Issue TrackingPatchVendor Advisory
https://usn.ubuntu.com/3922-2/ Third Party Advisory
https://usn.ubuntu.com/3922-3/ Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00104.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00012.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-7.php ProductVendor Advisory
https://bugs.php.net/bug.php?id=77586 Issue TrackingPatchVendor Advisory
https://usn.ubuntu.com/3922-2/ Third Party Advisory
https://usn.ubuntu.com/3922-3/ Third Party Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2019-9675), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.