LSN-0106-1

Description

Kernel Live Patch Security Notice In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: disallow timeout for anonymous sets Never used from userspace, disallow these parameters.(CVE-2023-52620) In the Linux kernel, the following vulnerability has been resolved: tls: fix race between tx work scheduling and socket close Similarly to previous commit, the submitting thread (recvmsg/sendmsg) may exit as soon as the async crypto handler calls complete(). Reorder scheduling the work before calling complete(). This seems more logical in the first place, as it's the inverse order of what the submitting thread will do.(CVE-2024-26585) In the Linux kernel, the following vulnerability has been resolved: tty: n_gsm: fix possible out-of-bounds in gsm0_receive() Assuming the following: - side A configures the n_gsm in basic option mode - side B sends the header of a basic option mode frame with data length 1 - side A switches to advanced option mode - side B sends 2 data bytes which exceeds gsm->len Reason: gsm->len is not used in advanced option mode. - side A switches to basic option mode - side B keeps sending until gsm0_receive() writes past gsm->buf Reason: Neither gsm->state nor gsm->len have been reset after reconfiguration. Fix this by changing gsm->count to gsm->len comparison from equal to less than. Also add upper limit checks against the constant MAX_MRU in gsm0_receive() and gsm1_receive() to harden against memory corruption of gsm->len and gsm->mru. All other checks remain as we still need to limit the data according to the user configuration and actual payload size.(CVE-2024-36016)

Affected Systems

• ubuntu•linux

  all | < 4.4.0-257.291 | < 4.15.0-227.239 | < 5.4.0-190.210 | < 5.15.0-117.127 | < 6.8.0-39.39

• ubuntu•linux-aws

  all | < 4.4.0-1172.187 | < 4.15.0-1170.183 | < 5.4.0-1129.139 | < 5.15.0-1066.72 | < 6.8.0-1012.13

• ubuntu•linux-aws-5.15

  all | < 5.15.0-1066.72~20.04.1

• ubuntu•linux-aws-hwe

  all | < 4.15.0-1170.183~16.04.1

• ubuntu•linux-azure

  all | < 4.15.0-1179.194~16.04.1 | < 5.4.0-1134.141 | < 5.15.0-1070.79 | < 6.8.0-1012.14

• ubuntu•linux-azure-4.15

  all | < 4.15.0-1179.194

• ubuntu•linux-gcp

  all | < 4.15.0-1164.181~16.04.1 | < 5.4.0-1133.142 | < 5.15.0-1065.73 | < 6.8.0-1011.12

• ubuntu•linux-gcp-4.15

  all | < 4.15.0-1164.181

• ubuntu•linux-gcp-5.15

  all | < 5.15.0-1065.73~20.04.1

• ubuntu•linux-gke

  all | < 5.15.0-1063.69

• ubuntu•linux-gkeop

  all | < 5.4.0-1096.100

• ubuntu•linux-hwe

  all | < 4.15.0-227.239~16.04.1

• ubuntu•linux-hwe-5.15

  all | < 5.15.0-117.127~20.04.1

• ubuntu•linux-hwe-5.4

  all | < 5.4.0-190.210~18.04.1

• ubuntu•linux-ibm

  all | < 5.4.0-1076.81 | < 5.15.0-1059.62 | < 6.8.0-1009.9

• ubuntu•linux-ibm-5.15

  all | < 5.15.0-1059.62~20.04.1

• ubuntu•linux-lowlatency-hwe-5.15

  all | < 5.15.0-117.127~20.04.1

• ubuntu•linux-lts-xenial

  all | < 4.4.0-257.291~14.04.1

• ubuntu•linux-oracle

  all | < 4.15.0-1133.144 | < 5.4.0-1129.138 | < 5.15.0-1064.70

• ubuntu•linux-oracle-5.15

  all | < 5.15.0-1065.71~20.04.1

References (4)

• https://ubuntu.com/security/notices/LSN-0106-1
• https://ubuntu.com/security/CVE-2023-52620
• https://ubuntu.com/security/CVE-2024-26585
• https://ubuntu.com/security/CVE-2024-36016