Executive Summary
| Informations | |||
|---|---|---|---|
| Name | CVE-2024-50265 | First vendor Publication | 2024-11-19 |
| Vendor | Cve | Last vendor Modification | 2024-11-21 |
Security-Database Scoring CVSS v3
| Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | |||
|---|---|---|---|
| Overall CVSS Score | 5.5 | ||
| Base Score | 5.5 | Environmental Score | 5.5 |
| impact SubScore | 3.6 | Temporal Score | 5.5 |
| Exploitabality Sub Score | 1.8 | ||
| Attack Vector | Local | Attack Complexity | Low |
| Privileges Required | Low | User Interaction | None |
| Scope | Unchanged | Confidentiality Impact | None |
| Integrity Impact | None | Availability Impact | High |
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : | |||
|---|---|---|---|
| Cvss Base Score | N/A | Attack Range | N/A |
| Cvss Impact Score | N/A | Attack Complexity | N/A |
| Cvss Expoit Score | N/A | Authentication | N/A |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| In the Linux kernel, the following vulnerability has been resolved: ocfs2: remove entry once instead of null-ptr-dereference in ocfs2_xa_remove() Syzkaller is able to provoke null-ptr-dereference in ocfs2_xa_remove(): [ 57.319872] (a.out,1161,7):ocfs2_xa_remove:2028 ERROR: status = -12 [ 57.320420] (a.out,1161,7):ocfs2_xa_cleanup_value_truncate:1999 ERROR: Partial truncate while removing xattr overlay.upper. Leaking 1 clusters and removing the entry [ 57.321727] BUG: kernel NULL pointer dereference, address: 0000000000000004 [...] [ 57.325727] RIP: 0010:ocfs2_xa_block_wipe_namevalue+0x2a/0xc0 [...] [ 57.331328] Call Trace: [ 57.331477] Reproducer uses faultinject facility to fail ocfs2_xa_remove() -> ocfs2_xa_value_truncate() with -ENOMEM. In this case the comment mentions that we can return 0 if ocfs2_xa_cleanup_value_truncate() is going to wipe the entry anyway. But the following 'rc' check is wrong and execution flow do 'ocfs2_xa_remove_entry(loc);' twice: * 1st: in ocfs2_xa_cleanup_value_truncate(); * 2nd: returning back to ocfs2_xa_remove() instead of going to 'out'. Fix this by skipping the 2nd removal of the same entry and making syzkaller repro happy. |
Original Source
| Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-50265 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-476 | NULL Pointer Dereference |
CPE : Common Platform Enumeration
Sources (Detail)
Alert History
| Date | Informations |
|---|---|
| 2025-03-29 03:43:03 |
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| 2025-03-28 13:46:45 |
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| 2025-03-28 03:20:46 |
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| 2025-03-19 03:15:56 |
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| 2025-03-18 03:28:54 |
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| 2025-03-14 03:16:07 |
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| 2025-03-06 14:12:40 |
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| 2025-02-22 03:26:13 |
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| 2025-01-08 03:07:08 |
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| 2025-01-07 03:06:41 |
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| 2024-12-25 03:05:18 |
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| 2024-12-12 03:08:13 |
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| 2024-11-23 00:22:44 |
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| 2024-11-22 00:22:36 |
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| 2024-11-20 03:02:02 |
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| 2024-11-20 03:01:14 |
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| 2024-11-20 00:20:28 |
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| 2024-11-19 09:20:29 |
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