Summary
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)
Fixed packages 5
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 20.04 LTS 20.04:LTS | glibc | 2.31-0ubuntu9.16 |
| Ubuntu · 22.04 LTS 22.04:LTS | glibc | 2.35-0ubuntu3.8 |
| Ubuntu · 24.04 LTS 24.04:LTS | glibc | 2.39-0ubuntu8.2 |
| Ubuntu · Pro 16.04 LTS Pro:16.04:LTS | glibc | 2.23-0ubuntu11.3+esm7 |
| Ubuntu · Pro 18.04 LTS Pro:18.04:LTS | glibc | 2.27-3ubuntu1.6+esm3 |
Vulnerabilities 4
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High 8.1
nscd: Stack-based buffer overflow in netgroup cache
nscd: Stack-based buffer overflow in netgroup cache If the Name Service Cache Daemon's (nscd) fixed size cache is exhausted by client requests then a subsequent client request for netgroup data may result in a stack-based buffer overflow. This flaw was introd…
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High 7.4
nscd: netgroup cache assumes NSS callback uses in-buffer strings
nscd: netgroup cache assumes NSS callback uses in-buffer strings The Name Service Cache Daemon's (nscd) netgroup cache can corrupt memory when the NSS callback does not store all strings in the provided buffer. The flaw was introduced in glibc 2.15 when the c…
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High 7.3
nscd: netgroup cache may terminate daemon on memory allocation failure
nscd: netgroup cache may terminate daemon on memory allocation failure The Name Service Cache Daemon's (nscd) netgroup cache uses xmalloc or xrealloc and these functions may terminate the process due to a memory allocation failure resulting in a denial of ser…
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Medium 5.9
nscd: Null pointer crashes after notfound response
nscd: Null pointer crashes after notfound response If the Name Service Cache Daemon's (nscd) cache fails to add a not-found netgroup response to the cache, the client request can result in a null pointer dereference. This flaw was introduced in glibc 2.15 whe…