9.8crit

CVE-2016-8670

Integer signedness error in the dynamicGetbuf function in gd_io_dp.c in the GD Graphics Library (aka libgd) through 2.2.3, as used in PHP b…

Published 9 y ago · modified 4 mo ago · JSON

CVSS
9.8
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
4.7%
percentile 92%
Public exploits
0
none known

Summary

Integer signedness error in the dynamicGetbuf function in gd_io_dp.c in the GD Graphics Library (aka libgd) through 2.2.3, as used in PHP before 5.6.28 and 7.x before 7.0.13, allows remote attackers to cause a denial of service (stack-based buffer overflow) or possibly have unspecified other impact via a crafted imagecreatefromstring call.

Exploit prediction (EPSS)

4.75% probability of exploitation in the next 30 days, higher than 92% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.09.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD2.07.5AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

  • php.net /ChangeLog-7.php · x_refsource_CONFIRM, x_transferred
  • securityfocus.com /bid/93594 · vdb-entry, x_refsource_BID, x_transferred
  • github.com /libgd/libgd/commit/53110871935244816bbb9d131da0bccff734bfe9 · x_refsource_CONFIRM, x_transferred
  • openwall.com /lists/oss-security/2016/10/15/1 · mailing-list, x_refsource_MLIST, x_transferred
  • debian.org /security/2016/dsa-3693 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • bugs.php.net /bug.php?id=73280 · x_refsource_CONFIRM, x_transferred
  • php.net /ChangeLog-5.php · x_refsource_CONFIRM, x_transferred
  • support.f5.com /csp/article/K21336065?utm_source=f5support&amp%3Butm_medium=RSS · x_refsource_CONFIRM, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.