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USN-5366-2: FriBidi vulnerabilities

27 April 2022

Several security issues were fixed in fribidi.

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Releases

Packages

  • fribidi - Free Implementation of the Unicode BiDi algorithm (utility)

Details

USN-5366-1 fixed several vulnerabilities in FriBidi. This update provides the
corresponding updates for Ubuntu 22.04 LTS.

Original advisory details:

It was discovered that FriBidi incorrectly handled processing of input strings
resulting in memory corruption. An attacker could use this issue to cause
FriBidi to crash, resulting in a denial of service, or potentially execute
arbitrary code. (CVE-2022-25308)

It was discovered that FriBidi incorrectly validated input data to its CapRTL
unicode encoder, resulting in memory corruption. An attacker could use this
issue to cause FriBidi to crash, resulting in a denial of service, or
potentially execute arbitrary code. (CVE-2022-25309)

It was discovered that FriBidi incorrectly handled empty input when removing
marks from unicode strings, resulting in a crash. An attacker could use this
to cause FriBidi to crash, resulting in a denial of service, or potentially
execute arbitrary code. (CVE-2022-25310)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 22.04

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

Related notices

  • USN-5366-1: libfribidi0, libfribidi-bin, libfribidi-dev, fribidi
  • USN-5922-1: libfribidi0, libfribidi-bin, libfribidi-dev, fribidi