Security update for the Linux Kernel
The SUSE Linux Enterprise 11 SP4 kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - CVE-2020-26555: Fixed Bluetooth legacy BR/EDR PIN code pairing in Bluetooth Core Specification 1.0B that may permit an unauthenticated nearby device to spoof the BD_ADDR of the peer device to complete pairing without knowledge of the PIN (bsc#1179610 bsc#1215237). - CVE-2022-45887: Fixed a memory leak in ttusb_dec.c caused by the lack of a dvb_frontend_detach call (bsc#1205762). - CVE-2023-1206: Fixed a hash collision flaw in the IPv6 connection lookup table which could be exploited by network adjacent attackers, increasing CPU usage by 95% (bsc#1212703). - CVE-2023-31085: Fixed a divide-by-zero error in do_div(sz,mtd->erasesize) that could cause a local DoS (bsc#1210778). - CVE-2023-3111: Fixed a use-after-free vulnerability in prepare_to_relocate in fs/btrfs/relocation.c (bsc#1212051). - CVE-2023-39189: Fixed a flaw in the Netfilter subsystem that could allow a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, leading to a crash or information disclosure (bsc#1216046). - CVE-2023-39192: Fixed an out of bounds read in the netfilter (bsc#1215858). - CVE-2023-39193: Fixed an out of bounds read in the xtables subsystem (bsc#1215860). - CVE-2023-39197: Fixed a out-of-bounds read in nf_conntrack_dccp_packet() (bsc#1216976). - CVE-2023-45863: Fixed a out-of-bounds write in fill_kobj_path() (bsc#1216058). - CVE-2023-51779: Fixed a use-after-free because of a bt_sock_ioctl race condition in bt_sock_recvmsg (bsc#1218559). - CVE-2023-6606: Fixed an out of bounds read in the SMB client when receiving a malformed length from a server (bsc#1217947). - CVE-2023-6932: Fixed a use-after-free vulnerability in the Linux kernel's ipv4: igmp component that could lead to local privilege escalation (bsc#1218253).
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
The SUSE Linux Enterprise 11 SP4 kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - CVE-2020-26555: Fixed Bluetooth legacy BR/EDR PIN code pairing in Bluetooth Core Specification 1.0B that may permit an unauthenticated nearby device to spoof the BD_ADDR of the peer device to complete pairing without knowledge of the PIN (bsc#1179610 bsc#1215237). - CVE-2022-45887: Fixed a memory leak in ttusb_dec.c caused by the lack of a dvb_frontend_detach call (bsc#1205762). - CVE-2023-1206: Fixed a hash collision flaw in the IPv6 connection lookup table which could be exploited by network adjacent attackers, increasing CPU usage by 95% (bsc#1212703). - CVE-2023-31085: Fixed a divide-by-zero error in do_div(sz,mtd->erasesize) that could cause a local DoS (bsc#1210778). - CVE-2023-3111: Fixed a use-after-free vulnerability in prepare_to_relocate in fs/btrfs/relocation.c (bsc#1212051). - CVE-2023-39189: Fixed a flaw in the Netfilter subsystem that could allow a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, leading to a crash or information disclosure (bsc#1216046). - CVE-2023-39192: Fixed an out of bounds read in the netfilter (bsc#1215858). - CVE-2023-39193: Fixed an out of bounds read in the xtables subsystem (bsc#1215860). - CVE-2023-39197: Fixed a out-of-bounds read in nf_conntrack_dccp_packet() (bsc#1216976). - CVE-2023-45863: Fixed a out-of-bounds write in fill_kobj_path() (bsc#1216058). - CVE-2023-51779: Fixed a use-after-free because of a bt_sock_ioctl race condition in bt_sock_recvmsg (bsc#1218559). - CVE-2023-6606: Fixed an out of bounds read in the SMB client when receiving a malformed length from a server (bsc#1217947). - CVE-2023-6932: Fixed a use-after-free vulnerability in the Linux kernel's ipv4: igmp component that could lead to local privilege escalation (bsc#1218253).
05 / REFERENCES
Further evidence
- https://bugzilla.suse.com/1179610
- https://bugzilla.suse.com/1205762
- https://bugzilla.suse.com/1210778
- https://bugzilla.suse.com/1212051
- https://bugzilla.suse.com/1212703
- https://bugzilla.suse.com/1215237
- https://bugzilla.suse.com/1215858
- https://bugzilla.suse.com/1215860
- https://bugzilla.suse.com/1216046
- https://bugzilla.suse.com/1216058
- https://bugzilla.suse.com/1216976
- https://bugzilla.suse.com/1217947
- https://bugzilla.suse.com/1218253
- https://bugzilla.suse.com/1218559
- https://www.suse.com/security/cve/CVE-2020-26555
- https://www.suse.com/security/cve/CVE-2022-45887
- https://www.suse.com/security/cve/CVE-2023-1206
- https://www.suse.com/security/cve/CVE-2023-31085
- https://www.suse.com/security/cve/CVE-2023-3111
- https://www.suse.com/security/cve/CVE-2023-39189
- https://www.suse.com/security/cve/CVE-2023-39192
- https://www.suse.com/security/cve/CVE-2023-39193
- https://www.suse.com/security/cve/CVE-2023-39197
- https://www.suse.com/security/cve/CVE-2023-45863
- https://www.suse.com/security/cve/CVE-2023-51779
- https://www.suse.com/security/cve/CVE-2023-6606
- https://www.suse.com/security/cve/CVE-2023-6932
- https://www.suse.com/support/update/announcement/2024/suse-su-20240112-1/