1. Ubuntu Security Notices
  2. USN-6804-1

USN-6804-1: GNU C Library vulnerabilities

Publication date

31 May 2024

Overview

Several security issues were fixed in GNU C Library.

Releases

Packages

Details

It was discovered that GNU C Library nscd daemon contained a stack-based buffer
overflow. A local attacker could use this to cause a denial of service
(system crash). (CVE-2024-33599)

It was discovered that GNU C Library nscd daemon did not properly check the
cache content, leading to a null pointer dereference vulnerability. A local
attacker could use this to cause a denial of service (system crash).
(CVE-2024-33600)

It was discovered that GNU C Library nscd daemon did not properly validate
memory allocation in certain situations, leading to a null pointer dereference
vulnerability. A local attacker could use this to cause a denial of service
(system crash). (CVE-2024-33601)

It was discovered that GNU C Library nscd daemon did not properly handle memory
allocation, which could lead to memory corruption. A...

It was discovered that GNU C Library nscd daemon contained a stack-based buffer
overflow. A local attacker could use this to cause a denial of service
(system crash). (CVE-2024-33599)

It was discovered that GNU C Library nscd daemon did not properly check the
cache content, leading to a null pointer dereference vulnerability. A local
attacker could use this to cause a denial of service (system crash).
(CVE-2024-33600)

It was discovered that GNU C Library nscd daemon did not properly validate
memory allocation in certain situations, leading to a null pointer dereference
vulnerability. A local attacker could use this to cause a denial of service
(system crash). (CVE-2024-33601)

It was discovered that GNU C Library nscd daemon did not properly handle memory
allocation, which could lead to memory corruption. A local attacker could use
this to cause a denial of service (system crash). (CVE-2024-33602)

Update instructions

After a standard system update you need to restart nscd to make all the necessary changes.

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
24.04 noble nscd –  2.39-0ubuntu8.2
23.10 mantic nscd –  2.38-1ubuntu6.3
22.04 jammy nscd –  2.35-0ubuntu3.8
20.04 focal nscd –  2.31-0ubuntu9.16
18.04 bionic nscd –  2.27-3ubuntu1.6+esm3  
16.04 xenial nscd –  2.23-0ubuntu11.3+esm7  

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References

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