CVE-2024-50262
bpf: Fix out-of-bounds write in trie_get_next_key()
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix out-of-bounds write in trie_get_next_key() trie_get_next_key() allocates a node stack with size trie->max_prefixlen,
while it writes (trie->max_prefixlen + 1) nodes to the stack when it has
full paths from the root to leaves. For example, consider a trie with
max_prefixlen is 8, and the nodes with key 0x00/0, 0x00/1, 0x00/2, ...
0x00/8 inserted. Subsequent calls to trie_get_next_key with _key with
.prefixlen = 8 make 9 nodes be written on the node stack with size 8.
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix out-of-bounds write in trie_get_next_key() trie_get_next_key() allocates a node stack with size trie->max_prefixlen, while it writes (trie->max_prefixlen + 1) nodes to the stack when it has full paths from the root to leaves. For example, consider a trie with max_prefixlen is 8, and the nodes with key 0x00/0, 0x00/1, 0x00/2, ... 0x00/8 inserted. Subsequent calls to trie_get_next_key with _key with .prefixlen = 8 make 9 nodes be written on the node stack with size 8.
Attila Szász discovered that the HFS+ file system implementation in the Linux Kernel contained a heap overflow vulnerability. An attacker could use a specially crafted file system image that, when mounted, could cause a denial of service or possibly execute arbitrary code. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.
CVSS Scores
SSVC
- Decision:Track*
Timeline
- 2024-10-21 CVE Reserved
- 2024-11-09 CVE Published
- 2024-12-19 CVE Updated
- 2025-03-29 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-787: Out-of-bounds Write
CAPEC
References (11)
URL | Tag | Source |
---|---|---|
https://git.kernel.org/stable/c/b471f2f1de8b816f1e799b80aa92588f3566e4bd | Vuln. Introduced |
URL | Date | SRC |
---|
URL | Date | SRC |
---|---|---|
https://access.redhat.com/security/cve/CVE-2024-50262 | 2024-12-19 | |
https://bugzilla.redhat.com/show_bug.cgi?id=2324892 | 2024-12-19 |
Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
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Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.16 < 4.19.323 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.16 < 4.19.323" | en |
Affected
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Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.16 < 5.4.285 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.16 < 5.4.285" | en |
Affected
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Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.16 < 5.10.229 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.16 < 5.10.229" | en |
Affected
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Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.16 < 5.15.171 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.16 < 5.15.171" | en |
Affected
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Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.16 < 6.1.116 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.16 < 6.1.116" | en |
Affected
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Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.16 < 6.6.60 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.16 < 6.6.60" | en |
Affected
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Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.16 < 6.11.7 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.16 < 6.11.7" | en |
Affected
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Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.16 < 6.12 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.16 < 6.12" | en |
Affected
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