CentOS: Security Advisory for bpftool (CESA-2021:2725)

Published: 2021-07-23 03:00:46
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:L/AC:L/Au:N/C:N/I:P/A:C

Summary:
The remote host is missing an update for the 'bpftool' Linux Distribution Package(s) announced via the CESA-2021:2725 advisory.

Detection Method:
Checks if a vulnerable Linux Distribution Package version is present on the target host.

Technical Details:
The kernel Linux Distribution Packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: size_t-to-int conversion vulnerability in the filesystem layer (CVE-2021-33909) * kernel: use-after-free in net/bluetooth/hci_event.c when destroying an hci_chan (CVE-2021-33034) * kernel: use-after-free in show_numa_stats function (CVE-2019-20934) * kernel: mishandles invalid descriptors in drivers/media/usb/gspca/xirlink_cit.c (CVE-2020-11668) * kernel: use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c (CVE-2021-33033) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Bug Fix(es): * [RHEL7.9.z] n_tty_open: 'BUG: unable to handle kernel paging request' (BZ#1872778) * [ESXi][RHEL7.8]'qp_alloc_hypercall result = -20' / 'Could not attach to queue pair with -20' with vSphere Fault Tolerance enabled (BZ#1892237) * [RHEL7.9][s390x][Regression] Sino Nomine swapgen IBM z/VM emulated DASD with DIAG driver returns EOPNOTSUPP (BZ#1910395) * False-positive hard lockup detected while processing the thread state information (SysRq-T) (BZ#1912221) * RHEL7.9 zstream - s390x LPAR with NVMe SSD will panic when it has 32 or more IFL (pci) (BZ#1917943) * The NMI watchdog detected a hard lockup while printing RCU CPU stall warning messages to the serial console (BZ#1924688) * nvme hangs when trying to allocate reserved tag (BZ#1926825) * [REGRESSION] 'call into AER handling regardless of severity' triggers do_recovery() unnecessarily on correctable PCIe errors (BZ#1933663) * Module nvme_core: A double free of the kmalloc-512 cache between nvme_trans_log_temperature() and nvme_get_log_page(). (BZ#1946793) * sctp - SCTP_CMD_TIMER_START queues active timer kernel BUG at kernel/timer.c:1000! (BZ#1953052) * [Hyper-V][RHEL-7]When CONFIG_NET_POLL_CONTROLLER is set, mainline commit 2a7f8c3b1d3fee is needed (BZ#1953075) * Kernel panic at cgroup_is_descendant (BZ#1957719) * [Hyper-V][RHEL-7]Commits To Fix Kdump Failures (BZ#1957803) * IGMPv2 JOIN packets incorrectly routed to loopback (BZ#1958339) * [CKI kernel builds]: x86 binaries in non-x86 kernel rpms breaks systemtap [7.9.z] (BZ#1960193) * mlx4: Fix memory allocation in mlx4_buddy_init needed (BZ#1962406) * incorrect assertion on pi_state->pi_mutex.wait_lock from pi_state_update_owner() (BZ#1965495)

Affected Versions:
'bpftool' Linux Distribution Package(s) on CentOS 7.

Recommendations:
Please install the updated Linux Distribution Package(s).

Solution Type:
Vendor Patch

Detection Type:
Linux Distribution Package

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2019-20934
https://nvd.nist.gov/vuln/detail/CVE-2020-11668
https://nvd.nist.gov/vuln/detail/CVE-2021-33033
https://nvd.nist.gov/vuln/detail/CVE-2021-33034
https://nvd.nist.gov/vuln/detail/CVE-2021-33909

References:


https://lists.centos.org/pipermail/centos-announce/2021-July/048344.html

Severity
Medium
CVSS Score
5.6
Published
2021-07-23
Modified
2021-07-26
Category
CentOS Local Security Checks

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