CVE-2019-3557 - The implementations of streams for bz2 and php://output improperly implemented their readImpl functions, returning -1 consistently

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CRITICAL

The implementations of streams for bz2 and php://output improperly implemented their readImpl functions, returning -1 consistently

Published Jan 15, 2019

9.8

CRITICAL

CVSS 3.0

EPSS 1.71%

Description

The implementations of streams for bz2 and php://output improperly implemented their readImpl functions, returning -1 consistently. This behavior caused some stream functions, such as stream_get_line, to trigger an out-of-bounds read when operating on such malformed streams. The implementations were updated to return valid values consistently. This affects all supported versions of HHVM (3.30 and 3.27.4 and below).

Affected products

Vendor Facebook Product HHVM Default
n/a
- Version
  3.27.5
  Status
  affected
  Constraints
  -
- Version
  3.30.0
  Status
  affected
  Constraints
  <unspecified
- Version
  3.30.1
  Status
  affected
  Constraints
  -
- Version
  unspecified
  Status
  affected
  Constraints
  <3.27.5

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Facebook

HHVM

n/a

Version	Status	Constraints
3.27.5	affected	-
3.30.0	affected	<unspecified
3.30.1	affected	-
unspecified	affected	<3.27.5

Remediation

No remediation recorded yet.

Weaknesses (1)

CWE-125

Out-of-bounds Read

References (2)

https://github.com/facebook/hhvm/commit/6e4dd9ec3f14b48170fc45dc9d13a3261765f994
x_refsource_MISCPatchThird Party Advisory
https://hhvm.com/blog/2019/01/14/hhvm-3.30.2.html
x_refsource_MISCVendor Advisory

Link	Providers	Tags
https://github.com/facebook/hhvm/commit/6e4dd9ec3f14b48170fc45dc9d13a3261765f994		x_refsource_MISCPatchThird Party Advisory
https://hhvm.com/blog/2019/01/14/hhvm-3.30.2.html		x_refsource_MISCVendor Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner facebook

Published Jan 15, 2019

Updated Aug 4, 2024

Reserved Jan 2, 2019

Link CVE-2019-3557

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2019-3557

Red Hat

Severity n/a

Public date n/a

Links CVE-2019-3557