Buffer overflow in PHP
CVE-2019-9675
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.060 (93.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 93.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.060 · newest: 0.060 · change: 0.000
Affected products
- PHP
- Canonical Ubuntu Linux — versions 12.04, 14.04
- openSUSE Leap — versions 42.3
Weakness classification (CWE)
References
- php.net/ChangeLog-7.php (Product, Vendor Advisory)
- bugs.php.net/bug.php (Patch, Issue Tracking, Vendor Advisory)
- usn.ubuntu.com/3922-2/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3922-3/ (vendor-advisory, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2019-04/msg00104.html (vendor-advisory, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2019-06/msg00012.html (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2019-06/msg00041.html (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2019-06/msg00044.html (vendor-advisory)
Frequently asked questions
- What is CVE-2019-9675?
- CVE-2019-9675 is a high-severity vulnerability in PHP, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.1/10. Published 2019-03-11.
- How severe is CVE-2019-9675?
- High severity. CVSS v3 base score is 8.1 out of 10.