CVE-2016-5399

HIGH

7.8

CVSS Score

Published: April 21, 2017 at 08:00 PM UTC

Updated: June 17, 2026 at 12:49 AM UTC

1 product affected across 1 vendorPHP

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Severity

HIGH7.8

Exploit prediction

EPSS 10%

Description

The bzread function in ext/bz2/bz2.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 allows remote attackers to cause a denial of service (out-of-bounds write) or execute arbitrary code via a crafted bz2 archive.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

PHP · PHPdrupal

95%

v ≤ 5.5.375.6.0 ≤ v < 5.6.247.0.0 ≤ v < 7.0.9

Affected range stops below 5.6.24, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.0.9, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (15)

x_refsource_MISCExploitThird Party AdvisoryVDB Entry

Source: [email protected]

http://packetstormsecurity.com/files/137998/PHP-7.0.8-5.6.23-5.5.37-bzread-OOB-Write.html

x_refsource_CONFIRMRelease NotesVendor Advisory

Source: [email protected]

http://php.net/ChangeLog-5.php

x_refsource_CONFIRMRelease NotesVendor Advisory

Source: [email protected]

http://php.net/ChangeLog-7.php

Vendor Advisoryx_refsource_REDHATThird Party Advisory

Source: [email protected]

http://rhn.redhat.com/errata/RHSA-2016-2598.html

Vendor Advisoryx_refsource_REDHATThird Party Advisory

Source: [email protected]

http://rhn.redhat.com/errata/RHSA-2016-2750.html

Mailing Listx_refsource_FULLDISCExploitThird Party Advisory

Source: [email protected]

http://seclists.org/fulldisclosure/2016/Jul/72

Vendor Advisoryx_refsource_DEBIANThird Party Advisory

Source: [email protected]

http://www.debian.org/security/2016/dsa-3631

Mailing Listx_refsource_MLISTExploitThird Party Advisory

Source: [email protected]

http://www.openwall.com/lists/oss-security/2016/07/21/1

CVSS

7.8HIGH[email protected]

Attack Vector: LOCAL
Complexity: LOW
Privileges: NONE
User Interaction: REQUIRED
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-787

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