| Name | CVE-2016-4073 |
| 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 of service (application crash) or possibly execute arbitrary code via a crafted mb_strcut call. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-499-1, DSA-3560-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| php5 (PTS) | jessie, jessie (lts) | 5.6.40+dfsg-0+deb8u21 | fixed |
| php7.0 (PTS) | stretch (security) | 7.0.33-0+deb9u12 | fixed |
| stretch (lts), stretch | 7.0.33-0+deb9u19 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| php5 | source | wheezy | 5.4.45-0+deb7u3 | | DLA-499-1 | |
| php5 | source | jessie | 5.6.20+dfsg-0+deb8u1 | | DSA-3560-1 | |
| php5 | source | (unstable) | 5.6.20+dfsg-1 | | | |
| php7.0 | source | (unstable) | 7.0.5-1 | | | |
Notes
Fixed in 7.0.5, 5.6.20, 5.5.34
https://bugs.php.net/bug.php?id=71906
https://gist.github.com/smalyshev/d8355c96a657cc5dba70
https://git.php.net/?p=php-src.git;a=commit;h=64f42c73efc58e88671ad76b6b6bc8e2b62713e1
https://www.openwall.com/lists/oss-security/2016/04/11/7