SB20240711235 - Red Hat Enterprise Linux 9 update for kernel-rt
Published: July 11, 2024
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 7 secuirty vulnerabilities.
1) Race condition (CVE-ID: CVE-2024-26643)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a race condition within the nf_tables_unbind_set() function in net/netfilter/nf_tables_api.c. A local user can exploit the race and escalate privileges on the system.
2) Improper access control (CVE-ID: CVE-2024-26642)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper access restrictions within the nf_tables_newset() function in net/netfilter/nf_tables_api.c. A local user can set arbitrary timeouts, which can result in a denial of service condition.
3) Input validation error (CVE-ID: CVE-2024-26673)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input within the nft_ct_expect_obj_init() function in net/netfilter/nft_ct.c. A local user can perform a denial of service (DoS) attack.
4) Use-after-free (CVE-ID: CVE-2024-26735)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the seg6_init() function in net/ipv6/seg6.c. A local user can escalate privileges on the system.
5) Use-after-free (CVE-ID: CVE-2024-26804)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the tnl_update_pmtu(), ip_md_tunnel_xmit() and ip_tunnel_xmit() functions in net/ipv4/ip_tunnel.c. A local user can escalate privileges on the system.
6) Integer underflow (CVE-ID: CVE-2024-26828)
The vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to integer underflow within the parse_server_interfaces() function in fs/smb/client/smb2ops.c. A local user can execute arbitrary code.
7) Information disclosure (CVE-ID: CVE-2024-26993)
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to information disclosure within the sysfs_break_active_protection() function in fs/sysfs/file.c. A local user can gain access to sensitive information.
Remediation
Install update from vendor's website.