SB2024081365 - Red Hat Enterprise Linux 8 update for kernel-rt
Published: August 13, 2024
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 secuirty vulnerabilities.
1) Resource management error (CVE-ID: CVE-2024-36005)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to resource management error within the nft_netdev_event() function in net/netfilter/nft_chain_filter.c. A local user can perform a denial of service (DoS) attack.
2) Use-after-free (CVE-ID: CVE-2024-36971)
The vulnerability allows a remote attacker to execute arbitrary code on the system.
The vulnerability exists due to a use-after-free error within the xfrm_link_failure() function in net/xfrm/xfrm_policy.c, within the dst_entry ip6_dst_check() and ip6_dst_check() functions in net/ipv6/route.c, within the dst_entry ipv4_dst_check() and ip_do_redirect() functions in net/ipv4/route.c. A remote attacker can send specially crafted packets to the system and execute arbitrary code.
Note, the vulnerability is being actively exploited in the wild.
3) NULL pointer dereference (CVE-ID: CVE-2024-39502)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the ionic_qcq_enable() function in drivers/net/ethernet/pensando/ionic/ionic_lif.c. A local user can perform a denial of service (DoS) attack.
4) Buffer overflow (CVE-ID: CVE-2022-48827)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory corruption within the nfsd4_encode_read() and nfsd4_encode_read_plus() functions in fs/nfsd/nfs4xdr.c, within the nfsd4_read() function in fs/nfsd/nfs4proc.c, within the nfsd3_proc_read() function in fs/nfsd/nfs3proc.c. A local user can perform a denial of service (DoS) attack.
5) Integer underflow (CVE-ID: CVE-2022-48828)
The vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to integer underflow within the nfsd_setattr() function in fs/nfsd/vfs.c. A local user can execute arbitrary code.
6) Input validation error (CVE-ID: CVE-2022-48829)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the svcxdr_decode_sattr3() function in fs/nfsd/nfs3xdr.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.