Bug 1210778 (CVE-2023-31085) - VUL-0: CVE-2023-31085: kernel: drivers/mtd/ubi/cdev.c has a divide-by-zero error in do_div(sz,mtd->erasesize)
Summary: VUL-0: CVE-2023-31085: kernel: drivers/mtd/ubi/cdev.c has a divide-by-zero er...
Status: RESOLVED FIXED
Alias: CVE-2023-31085
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents (show other bugs)
Version: unspecified
Hardware: Other Other
: P3 - Medium : Normal
Target Milestone: ---
Assignee: Security Team bot
QA Contact: Security Team bot
URL: https://smash.suse.de/issue/364292/
Whiteboard: CVSSv3.1:SUSE:CVE-2023-31085:5.5:(AV:...
Keywords:
Depends on:
Blocks:
 
Reported: 2023-04-24 13:04 UTC by Robert Frohl
Modified: 2024-06-25 17:37 UTC (History)
9 users (show)

See Also:
Found By: Security Response Team
Services Priority:
Business Priority:
Blocker: ---
Marketing QA Status: ---
IT Deployment: ---

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Description Robert Frohl 2023-04-24 13:04:06 UTC 
CVE-2023-31085

An issue was discovered in drivers/mtd/ubi/cdev.c in the Linux kernel 6.2. There
is a divide-by-zero error in do_div(sz,mtd->erasesize), used indirectly by
ctrl_cdev_ioctl, when mtd->erasesize is 0.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-31085
https://www.cve.org/CVERecord?id=CVE-2023-31085
https://lore.kernel.org/all/687864524.118195.1681799447034.JavaMail.zimbra@nod.at/
Comment 2 Jan Kara 2023-04-25 13:04:24 UTC 
Takashi, Hannes, who is taking care of MTD patches? For now I'm assigning this to Takashi since he seems to be picking mtd patches for git-fixes but feel free to reassign. I can see there's active discussion going on upstream but once that concludes we need to pick up the patch...
Comment 3 Takashi Iwai 2023-04-25 14:47:13 UTC 
I'll check.
Comment 9 Jan Kara 2023-08-31 11:14:15 UTC 
FWIW the fix for this seems trivial and I've submitted it upstream [1]. Let's see what happens...

[1] https://lore.kernel.org/all/20230831111100.26862-1-jack@suse.cz
Comment 10 Jan Kara 2023-09-01 09:08:30 UTC 
OK, so the patch got already posted by original reporter at [1], it just fell through the cracks. The maintainer is looking into it.

[1] https://patchwork.ozlabs.org/project/linux-mtd/patch/20230423111041.684297-1-chengzhihao1@huawei.com/
Comment 12 Takashi Iwai 2023-10-24 13:19:11 UTC 
The fix landed in the upstream Linus tree via commit 017c73a34a661a861712f7cc1393a123e5b2208c
  ubi: Refuse attaching if mtd's erasesize is 0

The fix is already included in stable 6.5.7.
I backported the fix to SLE15-SP6, SLE15-SP4, cve/linux-5.3, cve/linux-4.12, cve/linux-4.4 and cve/linux-3.0 branches.

Reassigned back to security team.
Comment 30 Maintenance Automation 2023-11-02 16:30:04 UTC 
SUSE-SU-2023:4349-1: An update that solves four vulnerabilities and has 11 security fixes can now be installed.

Category: security (important)
Bug References: 1206010, 1208788, 1210778, 1213705, 1213950, 1213977, 1215743, 1215745, 1216046, 1216051, 1216107, 1216140, 1216340, 1216513, 1216514
CVE References: CVE-2023-31085, CVE-2023-34324, CVE-2023-39189, CVE-2023-45862
Sources used:
SUSE Linux Enterprise Live Patching 12-SP5 (src): kgraft-patch-SLE12-SP5_Update_50-1-8.3.1
SUSE Linux Enterprise Software Development Kit 12 SP5 (src): kernel-obs-build-4.12.14-122.183.1
SUSE Linux Enterprise High Performance Computing 12 SP5 (src): kernel-source-4.12.14-122.183.1, kernel-syms-4.12.14-122.183.1
SUSE Linux Enterprise Server 12 SP5 (src): kernel-source-4.12.14-122.183.1, kernel-syms-4.12.14-122.183.1
SUSE Linux Enterprise Server for SAP Applications 12 SP5 (src): kernel-source-4.12.14-122.183.1, kernel-syms-4.12.14-122.183.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
Comment 31 Maintenance Automation 2023-11-02 16:30:09 UTC 
SUSE-SU-2023:4347-1: An update that solves 17 vulnerabilities and has two security fixes can now be installed.

Category: security (important)
Bug References: 1208995, 1210169, 1210778, 1212703, 1214233, 1214380, 1214386, 1215115, 1215117, 1215221, 1215275, 1215299, 1215467, 1215745, 1215858, 1215860, 1215861, 1216046, 1216051
CVE References: CVE-2020-36766, CVE-2023-1192, CVE-2023-1206, CVE-2023-1859, CVE-2023-31085, CVE-2023-34324, CVE-2023-39189, CVE-2023-39192, CVE-2023-39193, CVE-2023-39194, CVE-2023-40283, CVE-2023-42754, CVE-2023-45862, CVE-2023-4622, CVE-2023-4623, CVE-2023-4881, CVE-2023-4921
Sources used:
SUSE Linux Enterprise Live Patching 15-SP1 (src): kernel-livepatch-SLE15-SP1_Update_45-1-150100.3.3.1
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS 15-SP1 (src): kernel-obs-build-4.12.14-150100.197.160.1, kernel-syms-4.12.14-150100.197.160.1, kernel-source-4.12.14-150100.197.160.1
SUSE Linux Enterprise Server 15 SP1 LTSS 15-SP1 (src): kernel-obs-build-4.12.14-150100.197.160.1, kernel-syms-4.12.14-150100.197.160.1, kernel-source-4.12.14-150100.197.160.1
SUSE Linux Enterprise Server for SAP Applications 15 SP1 (src): kernel-obs-build-4.12.14-150100.197.160.1, kernel-syms-4.12.14-150100.197.160.1, kernel-source-4.12.14-150100.197.160.1
SUSE CaaS Platform 4.0 (src): kernel-obs-build-4.12.14-150100.197.160.1, kernel-syms-4.12.14-150100.197.160.1, kernel-source-4.12.14-150100.197.160.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
Comment 32 Maintenance Automation 2023-11-02 16:30:22 UTC 
SUSE-SU-2023:4348-1: An update that solves 11 vulnerabilities and has three security fixes can now be installed.

Category: security (important)
Bug References: 1210778, 1210853, 1212051, 1214842, 1215095, 1215467, 1215518, 1215745, 1215858, 1215860, 1215861, 1216046, 1216051, 1216134
CVE References: CVE-2023-2163, CVE-2023-31085, CVE-2023-3111, CVE-2023-34324, CVE-2023-3777, CVE-2023-39189, CVE-2023-39192, CVE-2023-39193, CVE-2023-39194, CVE-2023-42754, CVE-2023-45862
Sources used:
openSUSE Leap 15.3 (src): kernel-syms-5.3.18-150300.59.141.1, kernel-obs-build-5.3.18-150300.59.141.2, kernel-obs-qa-5.3.18-150300.59.141.1, kernel-source-5.3.18-150300.59.141.1, kernel-default-base-5.3.18-150300.59.141.2.150300.18.82.2, kernel-livepatch-SLE15-SP3_Update_38-1-150300.7.3.2
SUSE Linux Enterprise Live Patching 15-SP3 (src): kernel-livepatch-SLE15-SP3_Update_38-1-150300.7.3.2
SUSE Linux Enterprise High Performance Computing ESPOS 15 SP3 (src): kernel-syms-5.3.18-150300.59.141.1, kernel-default-base-5.3.18-150300.59.141.2.150300.18.82.2, kernel-source-5.3.18-150300.59.141.1, kernel-obs-build-5.3.18-150300.59.141.2
SUSE Linux Enterprise High Performance Computing LTSS 15 SP3 (src): kernel-syms-5.3.18-150300.59.141.1, kernel-default-base-5.3.18-150300.59.141.2.150300.18.82.2, kernel-source-5.3.18-150300.59.141.1, kernel-obs-build-5.3.18-150300.59.141.2
SUSE Linux Enterprise Server 15 SP3 LTSS 15-SP3 (src): kernel-syms-5.3.18-150300.59.141.1, kernel-default-base-5.3.18-150300.59.141.2.150300.18.82.2, kernel-source-5.3.18-150300.59.141.1, kernel-obs-build-5.3.18-150300.59.141.2
SUSE Linux Enterprise Server for SAP Applications 15 SP3 (src): kernel-syms-5.3.18-150300.59.141.1, kernel-default-base-5.3.18-150300.59.141.2.150300.18.82.2, kernel-source-5.3.18-150300.59.141.1, kernel-obs-build-5.3.18-150300.59.141.2
SUSE Manager Proxy 4.2 (src): kernel-default-base-5.3.18-150300.59.141.2.150300.18.82.2, kernel-source-5.3.18-150300.59.141.1
SUSE Manager Retail Branch Server 4.2 (src): kernel-default-base-5.3.18-150300.59.141.2.150300.18.82.2, kernel-source-5.3.18-150300.59.141.1
SUSE Manager Server 4.2 (src): kernel-default-base-5.3.18-150300.59.141.2.150300.18.82.2, kernel-source-5.3.18-150300.59.141.1
SUSE Enterprise Storage 7.1 (src): kernel-syms-5.3.18-150300.59.141.1, kernel-default-base-5.3.18-150300.59.141.2.150300.18.82.2, kernel-source-5.3.18-150300.59.141.1, kernel-obs-build-5.3.18-150300.59.141.2
SUSE Linux Enterprise Micro 5.1 (src): kernel-default-base-5.3.18-150300.59.141.2.150300.18.82.2
SUSE Linux Enterprise Micro 5.2 (src): kernel-default-base-5.3.18-150300.59.141.2.150300.18.82.2
SUSE Linux Enterprise Micro for Rancher 5.2 (src): kernel-default-base-5.3.18-150300.59.141.2.150300.18.82.2

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
Comment 33 Maintenance Automation 2023-11-02 16:30:29 UTC 
SUSE-SU-2023:4346-1: An update that solves four vulnerabilities and has 11 security fixes can now be installed.

Category: security (important)
Bug References: 1206010, 1208788, 1210778, 1213705, 1213950, 1213977, 1215743, 1215745, 1216046, 1216051, 1216107, 1216140, 1216340, 1216513, 1216514
CVE References: CVE-2023-31085, CVE-2023-34324, CVE-2023-39189, CVE-2023-45862
Sources used:
SUSE Linux Enterprise Server for SAP Applications 12 SP5 (src): kernel-source-azure-4.12.14-16.155.1, kernel-syms-azure-4.12.14-16.155.1
SUSE Linux Enterprise High Performance Computing 12 SP5 (src): kernel-source-azure-4.12.14-16.155.1, kernel-syms-azure-4.12.14-16.155.1
SUSE Linux Enterprise Server 12 SP5 (src): kernel-source-azure-4.12.14-16.155.1, kernel-syms-azure-4.12.14-16.155.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
Comment 34 Maintenance Automation 2023-11-02 16:30:34 UTC 
SUSE-SU-2023:4345-1: An update that solves nine vulnerabilities and has 14 security fixes can now be installed.

Category: security (important)
Bug References: 1208788, 1210778, 1211307, 1212423, 1212649, 1213705, 1214842, 1215095, 1215104, 1215518, 1215745, 1215768, 1215860, 1215955, 1215986, 1216046, 1216051, 1216062, 1216345, 1216510, 1216511, 1216512, 1216621
CVE References: CVE-2023-2163, CVE-2023-31085, CVE-2023-34324, CVE-2023-3777, CVE-2023-39189, CVE-2023-39193, CVE-2023-45862, CVE-2023-46813, CVE-2023-5178
Sources used:
openSUSE Leap 15.4 (src): kernel-syms-azure-5.14.21-150400.14.72.1, kernel-source-azure-5.14.21-150400.14.72.1
Public Cloud Module 15-SP4 (src): kernel-syms-azure-5.14.21-150400.14.72.1, kernel-source-azure-5.14.21-150400.14.72.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
Comment 35 Maintenance Automation 2023-11-03 16:30:15 UTC 
SUSE-SU-2023:4359-1: An update that solves four vulnerabilities and has 11 security fixes can now be installed.

Category: security (important)
Bug References: 1206010, 1208788, 1210778, 1213705, 1213950, 1213977, 1215743, 1215745, 1216046, 1216051, 1216107, 1216140, 1216340, 1216513, 1216514
CVE References: CVE-2023-31085, CVE-2023-34324, CVE-2023-39189, CVE-2023-45862
Sources used:
SUSE Linux Enterprise Real Time 12 SP5 (src): kernel-source-rt-4.12.14-10.149.1, kernel-syms-rt-4.12.14-10.149.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
Comment 36 Maintenance Automation 2023-11-06 16:30:02 UTC 
SUSE-SU-2023:4377-1: An update that solves 10 vulnerabilities and has two security fixes can now be installed.

Category: security (important)
Bug References: 1210778, 1210853, 1212051, 1215467, 1215518, 1215745, 1215858, 1215860, 1215861, 1216046, 1216051, 1216134
CVE References: CVE-2023-2163, CVE-2023-31085, CVE-2023-3111, CVE-2023-34324, CVE-2023-39189, CVE-2023-39192, CVE-2023-39193, CVE-2023-39194, CVE-2023-42754, CVE-2023-45862
Sources used:
SUSE Linux Enterprise Live Patching 15-SP2 (src): kernel-livepatch-SLE15-SP2_Update_42-1-150200.5.3.1
SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS 15-SP2 (src): kernel-obs-build-5.3.18-150200.24.169.1, kernel-source-5.3.18-150200.24.169.1, kernel-syms-5.3.18-150200.24.169.1, kernel-default-base-5.3.18-150200.24.169.1.150200.9.85.1
SUSE Linux Enterprise Server 15 SP2 LTSS 15-SP2 (src): kernel-obs-build-5.3.18-150200.24.169.1, kernel-source-5.3.18-150200.24.169.1, kernel-syms-5.3.18-150200.24.169.1, kernel-default-base-5.3.18-150200.24.169.1.150200.9.85.1
SUSE Linux Enterprise Server for SAP Applications 15 SP2 (src): kernel-obs-build-5.3.18-150200.24.169.1, kernel-source-5.3.18-150200.24.169.1, kernel-syms-5.3.18-150200.24.169.1, kernel-default-base-5.3.18-150200.24.169.1.150200.9.85.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
Comment 37 Maintenance Automation 2023-11-06 16:30:14 UTC 
SUSE-SU-2023:4378-1: An update that solves seven vulnerabilities and has 14 security fixes can now be installed.

Category: security (important)
Bug References: 1208788, 1210778, 1211307, 1212423, 1212649, 1213705, 1213772, 1214842, 1215095, 1215104, 1215518, 1215955, 1215956, 1215957, 1215986, 1216062, 1216345, 1216510, 1216511, 1216512, 1216621
CVE References: CVE-2023-2163, CVE-2023-31085, CVE-2023-34324, CVE-2023-3777, CVE-2023-39189, CVE-2023-39193, CVE-2023-5178
Sources used:
openSUSE Leap 15.4 (src): kernel-default-base-5.14.21-150400.24.97.1.150400.24.44.2, kernel-source-5.14.21-150400.24.97.1, kernel-livepatch-SLE15-SP4_Update_20-1-150400.9.3.2, kernel-syms-5.14.21-150400.24.97.1, kernel-obs-qa-5.14.21-150400.24.97.1, kernel-obs-build-5.14.21-150400.24.97.1
openSUSE Leap Micro 5.3 (src): kernel-default-base-5.14.21-150400.24.97.1.150400.24.44.2
openSUSE Leap Micro 5.4 (src): kernel-default-base-5.14.21-150400.24.97.1.150400.24.44.2
SUSE Linux Enterprise Micro for Rancher 5.3 (src): kernel-default-base-5.14.21-150400.24.97.1.150400.24.44.2
SUSE Linux Enterprise Micro 5.3 (src): kernel-default-base-5.14.21-150400.24.97.1.150400.24.44.2
SUSE Linux Enterprise Micro for Rancher 5.4 (src): kernel-default-base-5.14.21-150400.24.97.1.150400.24.44.2
SUSE Linux Enterprise Micro 5.4 (src): kernel-default-base-5.14.21-150400.24.97.1.150400.24.44.2
Basesystem Module 15-SP4 (src): kernel-default-base-5.14.21-150400.24.97.1.150400.24.44.2, kernel-source-5.14.21-150400.24.97.1
Development Tools Module 15-SP4 (src): kernel-syms-5.14.21-150400.24.97.1, kernel-source-5.14.21-150400.24.97.1, kernel-obs-build-5.14.21-150400.24.97.1
SUSE Linux Enterprise Live Patching 15-SP4 (src): kernel-livepatch-SLE15-SP4_Update_20-1-150400.9.3.2

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
Comment 47 Maintenance Automation 2024-01-17 12:36:42 UTC 
SUSE-SU-2024:0112-1: An update that solves 13 vulnerabilities and has one security fix can now be installed.

Category: security (important)
Bug References: 1179610, 1205762, 1210778, 1212051, 1212703, 1215237, 1215858, 1215860, 1216046, 1216058, 1216976, 1217947, 1218253, 1218559
CVE References: CVE-2020-26555, CVE-2022-45887, CVE-2023-1206, CVE-2023-31085, CVE-2023-3111, CVE-2023-39189, CVE-2023-39192, CVE-2023-39193, CVE-2023-39197, CVE-2023-45863, CVE-2023-51779, CVE-2023-6606, CVE-2023-6932
Sources used:
SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE 11-SP4 (src): kernel-source-3.0.101-108.150.1, kernel-syms-3.0.101-108.150.1
SUSE Linux Enterprise Server 11 SP4 (src): kernel-source-3.0.101-108.150.1, kernel-syms-3.0.101-108.150.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
Comment 51 Robert Frohl 2024-05-06 12:47:42 UTC 
done, closing