Bug 1274120 - CVE-2015-4840 and LCMS 2
CVE-2015-4840 and LCMS 2
Status: NEW
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: lcms2 (Show other bugs)
Unspecified Unspecified
unspecified Severity unspecified
: rc
: ---
Assigned To: Richard Hughes
Desktop QE
Depends On:
Blocks: CVE-2015-4840
  Show dependency treegraph
Reported: 2015-10-21 22:37 EDT by Andrew John Hughes
Modified: 2017-10-03 21:27 EDT (History)
0 users

See Also:
Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of:
Last Closed:
Type: Bug
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)

  None (edit)
Description Andrew John Hughes 2015-10-21 22:37:03 EDT
As part of the October 20th security update for the OpenJDK packages, the following patch for CVE-2015-4840 was included, which patches the build of OpenJDK's local copy of LCMS 2 to add  -DCMS_DONT_USE_FAST_FLOOR to the CFLAGS.


On RHEL 7, OpenJDK was using the system copy of LCMS 2 instead, but we switched back to the in-tree version in order to incorporate this change. We appreciate it if the system version could also be built with this flag. It swaps a rather hacky floor implementation (writing to one member of a union then reading from another) for a call to the C library's floor function.

The RHEL bug for the security issue is bug 1273338.

Note You need to log in before you can comment on or make changes to this bug.