high CVSS 7.8

CVE-2024-58069·Kernel vulnerability

In the Linux kernel, the following vulnerability has been resolved: rtc: pcf85063: fix potential OOB write in PCF85063 NVMEM read The nvmem interface supports variable buffer sizes, while the regmap interface operates with fixed-size storage. If an nvmem client uses a buffer size less than 4 bytes, regmap_read will write out of bounds as it expects the buffer to point at an unsigned int. Fix this by using an intermediary unsigned int to hold the value.

Severity
high
Software
Kernel
Fixed in
6.13.2
Published
2025-03-06

Affected versions

From: 6.13

Until: 6.13.2

Fixed in: 6.13.2

How to fix this CVE

Update your Linux kernel to version 6.13.2 or later to patch a memory safety issue in the PCF85063 real-time clock driver's NVMEM interface. Systems running kernel versions 6.13 through 6.13.1 should prioritize this update to prevent potential out-of-bounds writes that could occur when NVMEM clients request buffer sizes smaller than the expected 4-byte boundary.

sudo dnf check-update kernel && sudo dnf update kernel

Defensia detects this vulnerability

How to check if you are affected

  1. Run `uname -r` to display your currently running kernel version and compare it against the affected range (6.13.0 - 6.13.1)
  2. Check if PCF85063 RTC driver is loaded: `lsmod | grep pcf85063` or `grep -i pcf85063 /proc/modules`
  3. Examine kernel logs for memory access violations: `dmesg | grep -i 'buffer\|oob\|out.of.bounds\|fault'`
  4. After patching, reboot and confirm the new version: `uname -r` should show 6.13.2 or later

FAQ

What is CVE-2024-58069?

CVE-2024-58069 is a kernel memory safety vulnerability in the PCF85063 real-time clock driver where the NVMEM read function can write beyond allocated buffer boundaries when handling non-standard buffer sizes, potentially leading to kernel memory corruption.

Is CVE-2024-58069 being actively exploited?

No, CVE-2024-58069 is not listed in the CISA Known Exploited Vulnerabilities catalog and no public exploit code has been disclosed.

What versions of Kernel are affected by CVE-2024-58069?

Linux kernel versions 6.13 through 6.13.1 are affected. The vulnerability was resolved in kernel 6.13.2.

How do I check if my server is vulnerable to CVE-2024-58069?

Run `uname -r` and verify the output is version 6.13.0 or 6.13.1 AND the PCF85063 driver is loaded on your system (`lsmod | grep pcf85063` returns a result).

Does Defensia detect CVE-2024-58069?

Yes — Defensia's CVE advisory scanner compares installed package versions against the NVD database. If Kernel is installed on a monitored server, CVE-2024-58069 will appear in your dashboard with remediation steps.

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CVE-2022-48716CVSS 9.8In the Linux kernel, the following vulnerability has been resolved: ASoC: codecs: wcd938x: fix incorrect used of portid Mixer controls have the channel id in mixer->reg, which is not same as port id. port id should be derived from chan_info array. So fix this. Without this, its possible that we could corrupt struct wcd938x_sdw_priv by accessing port_map array out of range with channel id instead of port id.
CVE-2021-47548CVSS 9.8In the Linux kernel, the following vulnerability has been resolved: ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port() The if statement: if (port >= DSAF_GE_NUM) return; limits the value of port less than DSAF_GE_NUM (i.e., 8). However, if the value of port is 6 or 7, an array overflow could occur: port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off; because the length of dsaf_dev->mac_cb is DSAF_MAX_PORT_NUM (i.e., 6). To fix this possible array overflow, we first check port and if it is greater than or equal to DSAF_MAX_PORT_NUM, the function returns.
CVE-2024-36031CVSS 9.8In the Linux kernel, the following vulnerability has been resolved: keys: Fix overwrite of key expiration on instantiation The expiry time of a key is unconditionally overwritten during instantiation, defaulting to turn it permanent. This causes a problem for DNS resolution as the expiration set by user-space is overwritten to TIME64_MAX, disabling further DNS updates. Fix this by restoring the condition that key_set_expiry is only called when the pre-parser sets a specific expiry.
CVE-2024-38541CVSS 9.8In the Linux kernel, the following vulnerability has been resolved: of: module: add buffer overflow check in of_modalias() In of_modalias(), if the buffer happens to be too small even for the 1st snprintf() call, the len parameter will become negative and str parameter (if not NULL initially) will point beyond the buffer's end. Add the buffer overflow check after the 1st snprintf() call and fix such check after the strlen() call (accounting for the terminating NUL char).

References

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