SB2024060852 - Ubuntu update for linux
Published: June 8, 2024
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 13 secuirty vulnerabilities.
1) Use-after-free (CVE-ID: CVE-2023-47233)
The vulnerability allows an attacker to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the brcm80211 in a brcmf_cfg80211_detach in the device unplugging (disconnect the USB by hotplug) code. An attacker with physical access to device can trigger a use-after-free error and escalate privileges on the system.
2) Information disclosure (CVE-ID: CVE-2022-0001)
The vulnerability allows a local user to gain access to potentially sensitive information.
The vulnerability exists due to non-transparent sharing of branch predictor selectors between contexts. A local user can gain unauthorized access to sensitive information on the system.
3) Processor optimization removal or modification of security-critical code (CVE-ID: CVE-2024-2201)
The vulnerability allows a malicious guest to escalate privileges on the system.
The vulnerability exists due to native branch history injection on x86 systems. A malicious guest can infer the contents of arbitrary host memory, including memory assigned to other guests and compromise the affected system.
4) Double free (CVE-ID: CVE-2024-26704)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a double free error within the ext4_move_extents() function in fs/ext4/move_extent.c. A local user can perform a denial of service (DoS) attack.
5) Improper locking (CVE-ID: CVE-2023-52615)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the rng_get_data() and rng_dev_read() functions in drivers/char/hw_random/core.c. A local user can perform a denial of service (DoS) attack.
6) Use of uninitialized resource (CVE-ID: CVE-2024-26805)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to use of uninitialized resource within the netlink_group_mask() function in net/netlink/af_netlink.c. A local user can perform a denial of service (DoS) attack.
7) Out-of-bounds read (CVE-ID: CVE-2023-52604)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the dbAdjTree() function in fs/jfs/jfs_dmap.c. A local user can perform a denial of service (DoS) attack.
8) Resource management error (CVE-ID: CVE-2024-26614)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper management of internal resources within the reqsk_queue_alloc() function in net/core/request_sock.c. A remote attacker can send specially crafted ACK packets to the system and perform a denial of service (DoS) attack.
9) Out-of-bounds read (CVE-ID: CVE-2023-52602)
The vulnerability allows a local user to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within the dtSearch() function in fs/jfs/jfs_dtree.c. A local user can trigger an out-of-bounds read error and read contents of memory on the system.
10) Use of uninitialized resource (CVE-ID: CVE-2024-26635)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to use of uninitialized resource within the cpu_to_be16() function in net/llc/llc_core.c. A local user can perform a denial of service (DoS) attack.
11) Use-after-free (CVE-ID: CVE-2024-26622)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the tomoyo_write_control() function. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.
12) Buffer overflow (CVE-ID: CVE-2023-52601)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in fs/jfs/jfs_dmap.c. A local user can trigger memory corruption and perform a denial of service (DoS) attack.
13) Use-after-free (CVE-ID: CVE-2024-26801)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the hci_error_reset() function in net/bluetooth/hci_core.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.