USN-5366-2: FriBidi vulnerabilities

Releases

• Ubuntu 22.04 LTS

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)

Update instructions

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

Ubuntu 22.04

• libfribidi-bin - 1.0.8-2ubuntu3.1
• libfribidi0 - 1.0.8-2ubuntu3.1
• libfribidi-dev - 1.0.8-2ubuntu3.1

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

References

• CVE-2022-25310
• CVE-2022-25308
• CVE-2022-25309

Related notices

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