Ubuntu Security Notice 5366-2 - USN-5366-1 fixed several vulnerabilities in FriBidi. This update provides the corresponding updates for Ubuntu 22.04 LTS. 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.
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Ubuntu Security Notice USN-5366-2
April 27, 2022
fribidi vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 22.04 LTS
Summary:
Several security issues were fixed in fribidi.
Software Description:
- 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 LTS:
libfribidi-bin 1.0.8-2ubuntu3.1
libfribidi-dev 1.0.8-2ubuntu3.1
libfribidi0 1.0.8-2ubuntu3.1
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-5366-2
https://ubuntu.com/security/notices/USN-5366-1
CVE-2022-25308, CVE-2022-25309, CVE-2022-25310
Package Information:
https://launchpad.net/ubuntu/+source/fribidi/1.0.8-2ubuntu3.1