CVE-2022-49058
Last modified
CVE-2022-49058 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: cifs: potential buffer overflow in handling symlinks Smatch printed a warning: arch/x86/crypto/poly1305_glue.c:198 poly1305_update_arch() error: __memcpy() 'dctx->buf' too small (16 vs u32max) It's caused because Smatch marks 'link_len' as untrusted since it comes from sscanf(). Add a check to ensure that 'link_len' is not larger than the size of the 'link_str' buffer.. EPSS estimates a 0.32% chance of exploitation in the next 30 days.
Description
In the Linux kernel, the following vulnerability has been resolved: cifs: potential buffer overflow in handling symlinks Smatch printed a warning: arch/x86/crypto/poly1305_glue.c:198 poly1305_update_arch() error: __memcpy() 'dctx->buf' too small (16 vs u32max) It's caused because Smatch marks 'link_len' as untrusted since it comes from sscanf(). Add a check to ensure that 'link_len' is not larger than the size of the 'link_str' buffer.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Linux | Linux Kernel | >= 2.6.37, < 4.9.311 | — |
| Linux | Linux Kernel | >= 4.10, < 4.14.276 | — |
| Linux | Linux Kernel | >= 4.15, < 4.19.239 | — |
| Linux | Linux Kernel | >= 4.20, < 5.4.190 | — |
| Linux | Linux Kernel | >= 5.5, < 5.10.112 | — |
| Linux | Linux Kernel | >= 5.11, < 5.15.35 | — |
| Linux | Linux Kernel | >= 5.16, < 5.17.4 | — |
| Linux | Linux Kernel | 5.18 | Rc1 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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