CentOS 6 ELS kernel v.2.6.32-754.29.3.el6 has been scheduled for gradual rollout from our production repository.

Rollout slot: 2

Rolled out to: 1%

ETA for 100%: February, 16

Changelog

• CKSIX-268: futex: Handle faults correctly for PI futexes
• CKSIX-268: futex: Provide and use pi_state_update_owner()
• CKSIX-263: KEYS: allow reaching the keys quotas exactly
• CKSIX-263: KEYS: reaching the keys quotas correctly
• CKSIX-263: fix -ENOMEM result with invalid user space pointer in
  sendto() syscall
• CKSIX-263: CVE-2017-18344: posix-timer: Properly check sigevent->sigev_notify
• CKSIX-263: CVE-2018-6927: futex: Prevent overflow by strengthen
  input validation
• CKSIX-258: CVE-2017-6951: KEYS: Change the name of the dead type to
  ".dead" to prevent user access
• CKSIX-258: CVE-2017-15299: KEYS: don't let add_key() update an
  uninstantiated key
• CKSIX-258: fix CVE-2016-9604
• CKSIX-258: KEYS: add missing permission check for request_key() destination
• CKSIX-258: KEYS: prevent KEYCTL_READ on negative key
• CKSIX-258: CVE-2017-10661: timerfd: Protect the might cancel mechanism proper
• CKSIX-258: fix CVE-2017-7472
• CKSIX-258: fix CVE-2017-15274

yum update kernel*

Immediate update (via bypass)

yum update kernel* --enablerepo=ELS6-rollout-2-bypass

A new sudo package with the CVE-2021-3156 fix within CloudLinux 6 extended lifecycle support has been rolled out to 100% and is now available for download from our production repository.

Changelog

sudo-1.8.6p3-30.cloudlinux.els6

• Fixed Heap-based buffer overflow in Sudo (CVE-2021-3156)

Update command

yum update sudo*

CVE-2021-3156 description

Sudo before 1.9.5p2 has a Heap-based Buffer Overflow, allowing privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character.

A new sudo package with the CVE-2021-3156 fix within CloudLinux 6 extended lifecycle support has been scheduled for gradual rollout from our production repository.

Rollout slot: 4

Rolled out to: 1%

ETA for 100% rollout: February, 10

Changelog

sudo-1.8.6p3-30.cloudlinux.els6

• Fixed Heap-based buffer overflow in Sudo (CVE-2021-3156)

Update command

yum update sudo*

Immediate update (via bypass)

yum update sudo* --enablerepo=cloudlinux-rollout-4-bypass

CVE-2021-3156 description

Sudo before 1.9.5p2 has a Heap-based Buffer Overflow, allowing privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character.