CVE-2016-4073
Multiple integer overflows in the mbfl_strcut function in ext/mbstring/libmbfl/mbfl/mbfilter.c in PHP before 5.5.34, 5.6.x before 5.6.20, and 7.x before 7.0.5 allow remote attackers to cause a denial
02 Description
Multiple integer overflows in the mbfl_strcut function in ext/mbstring/libmbfl/mbfl/mbfilter.c in PHP before 5.5.34, 5.6.x before 5.6.20, and 7.x before 7.0.5 allow remote attackers to cause a denial
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 7.09% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 94.0% of scored records. A rank, not a probability.
- NVD base score
- 9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2016-05-20 10:00Z10 YR AGO
- Last updated
- 2024-08-06 00:17Z2 YR AGO
- Reserved
- 2016-04-23
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- e40d295fb53baa351632a972f5944e06872bf0cb4c40ef52b0cc8e6290fa52d8
05 Affected products
06 References
- www.ubuntu.comUSN-2952-1http://www.ubuntu.com/usn/USN-2952-1
- www.securityfocus.com85991http://www.securityfocus.com/bid/85991
- www.php.nethttp://www.php.net/ChangeLog-7.php
- security.gentoo.orgGLSA-201611-22https://security.gentoo.org/glsa/201611-22
- support.apple.comhttps://support.apple.com/HT206567
- rhn.redhat.comRHSA-2016:2750http://rhn.redhat.com/errata/RHSA-2016-2750.html
- www.debian.orgDSA-3560http://www.debian.org/security/2016/dsa-3560
- www.ubuntu.comUSN-2952-2http://www.ubuntu.com/usn/USN-2952-2
- lists.apple.comAPPLE-SA-2016-05-16-4http://lists.apple.com/archives/security-announce/2016/May/msg00004.html
- bugs.php.nethttps://bugs.php.net/bug.php?id=71906
- www.php.nethttp://www.php.net/ChangeLog-5.php
- gist.github.comhttps://gist.github.com/smalyshev/d8355c96a657cc5dba70
- git.php.nethttps://git.php.net/?p=php-src.git%3Ba=commit%3Bh=64f42c73efc58e88671ad76b6b6bc8e2b62713e1
- h20566.www2.hpe.comhttps://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731
- lists.opensuse.orgopenSUSE-SU-2016:1274http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00031.html
- lists.opensuse.orgSUSE-SU-2016:1277http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00033.html
- www.openwall.com[oss-security] 20160423 Re: CVE request: PHP issues fixed in 7.0.5, 5.6.20 and 5.5.34 releaseshttp://www.openwall.com/lists/oss-security/2016/04/24/1
- lists.opensuse.orgopenSUSE-SU-2016:1373http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00056.html
07 Fixed in
Ubuntu 14.04 LTS
- php5 Fixed in 5.5.9+dfsg-1ubuntu4.16
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- php7.0 Fixed in 7.0.4-7ubuntu2.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.