[USN-4179-1] FriBidi vulnerability

Alex Murray alex.murray at canonical.com
Thu Nov 7 23:52:21 UTC 2019

Ubuntu Security Notice USN-4179-1
November 07, 2019

fribidi vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 19.10
- Ubuntu 19.04


Applications using FriBidi could be made to crash or run programs as your
login if it displayed specially crafted text.

Software Description:
- fribidi: Free Implementation of the Unicode BiDi algorithm (utility)


Alex Murray discovered a stack-based buffer overflow when handling a large
number of unicode isolate directives. An attacker could use this to cause a
denial of service or possibly execute arbitrary code.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 19.10:
  libfribidi0                     1.0.5-3.1ubuntu0.19.10.1

Ubuntu 19.04:
  libfribidi0                     1.0.5-3.1ubuntu0.19.04.1

In general, a standard system update will make all the necessary changes.


Package Information:
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 487 bytes
Desc: not available
URL: <https://lists.ubuntu.com/archives/ubuntu-security-announce/attachments/20191108/c028989c/attachment.sig>

More information about the ubuntu-security-announce mailing list