Explore top 10 tips to secure your open-source projects now. Read More

×
Alerts This Week
Warning Icon 1 495
Alerts This Week
Warning Icon 1 495

Ubuntu 18.04 LTS: USN-6166-2 Critical Libcap2 Code Execution Risk

ubuntu
Calendar Grey June 19, 2023
Dist Ubuntu Esm H88
Uncover the Ubuntu 6166-2 announcement addressing the libcap2 vulnerability impacting specific LTS releases and its consequences.
libcap could be made to crash or possibly execute arbitrary code if it received a specially crafted input.

Summary

libcap could be made to crash or possibly execute arbitrary code

if it received a specially crafted input.

Software Description:

- libcap2: POSIX 1003.1e capabilities (library)

Details:

USN-6166-1 fixed a vulnerability in libcap2. This update provides

the corresponding update for Ubuntu 14.04 ESM, Ubuntu 16.04 ESM

and Ubuntu 18.04 ESM.

Original advisory details:

Richard Weinberger discovered that libcap2 incorrectly handled certain long

input strings. An attacker could use this issue to cause libcap2 to crash,

resulting in a denial of service, or possibly execute arbitrary code.

(CVE-2023-2603)

Topics%20covered

Topics Covered

security advisory denial of service critical code execution ubuntu libcap2

Update Instructions

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

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
  libcap2                         1:2.25-1.2ubuntu0.1~esm1
  libcap2-bin                     1:2.25-1.2ubuntu0.1~esm1

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
  libcap2                         1:2.24-12ubuntu0.1~esm1
  libcap2-bin                     1:2.24-12ubuntu0.1~esm1

Ubuntu 14.04 LTS (Available with Ubuntu Pro):
  libcap2                         1:2.24-0ubuntu2+esm1
  libcap2-bin                     1:2.24-0ubuntu2+esm1

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

References

https://ubuntu.com/security/notices/USN-6166-2

https://ubuntu.com/security/notices/USN-6166-1

CVE-2023-2603

Severity
critical
Lowest
Low
Medium
High
Critical

June 19, 2023

Topics%20covered

Topics Covered

security advisory denial of service critical code execution ubuntu libcap2

Package Information

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.