Bug 1210169 (CVE-2023-1859) - VUL-1: CVE-2023-1859: kernel-source,kernel-source-rt,kernel-source-azure: use after free in xen_9pfs_front_remove() due to race condition
Summary: VUL-1: CVE-2023-1859: kernel-source,kernel-source-rt,kernel-source-azure: use...
Status: RESOLVED FIXED
Alias: CVE-2023-1859
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/362393/
Whiteboard: CVSSv3.1:SUSE:CVE-2023-1859:1.9:(AV:L...
Keywords:
Depends on:
Blocks:
 
Reported: 2023-04-05 15:43 UTC by Carlos López
Modified: 2024-05-06 11:56 UTC (History)
7 users (show)

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

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Description Carlos López 2023-04-05 15:43:14 UTC 
CVE-2023-1859

Use after free in xen_9pfs_front_remove due to race condition.

References:

https://lore.kernel.org/all/20230313090002.3308025-1-zyytlz.wz@163.com/

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-1859
https://bugzilla.redhat.com/show_bug.cgi?id=2184395
Comment 1 Carlos López 2023-04-05 15:49:44 UTC 
We have CONFIG_NET_9P_XEN enabled in:
- master
- stable
- cve/linux-5.3
- cve/linux-4.12

71ebd71921e4 ("xen/9pfs: connect to the backend") was introduced in 4.11:
$ git describe 71ebd71921e4
v4.11-1490-g71ebd71921e4

The patch has not been merged yet.
Comment 2 Carlos López 2023-04-05 15:54:29 UTC 
(In reply to Carlos López from comment #1)
> We have CONFIG_NET_9P_XEN enabled in:
> - master
> - stable
> - cve/linux-5.3
> - cve/linux-4.12

And SLE15-SP4 & SLE15-SP5-GA.
Comment 4 Michal Koutný 2023-05-25 23:20:35 UTC 
This was merged as
> ea4f1009408e ("9p/xen : Fix use after free bug in xen_9pfs_front_remove due to race condition") v6.3-rc7~34^2~1

(Use SLE15-SP4 to get it into SLE15-SP5 via automatic merge.)

And I also wonder whether xen_9pfs_front_remove() invocation is anyhow under control of an unprivileged user (Cc Jürgen)? (Possibly CVE dispute?)
Comment 5 Jürgen Groß 2023-05-26 07:07:52 UTC 
(In reply to Michal Koutný from comment #4)
> This was merged as
> > ea4f1009408e ("9p/xen : Fix use after free bug in xen_9pfs_front_remove due to race condition") v6.3-rc7~34^2~1
> 
> (Use SLE15-SP4 to get it into SLE15-SP5 via automatic merge.)
> 
> And I also wonder whether xen_9pfs_front_remove() invocation is anyhow under
> control of an unprivileged user (Cc Jürgen)? (Possibly CVE dispute?)

No, xen_9pfs_front_remove() can be called only during shutdown of the system, as hotplugging Xen PV-9pfs devices isn't supported by Xen. Even if it were supported, it would need a Xen host admin's action to trigger it.

So I don't see how a CVE could be appropriate.
Comment 8 Jan Kara 2023-08-31 11:52:23 UTC 
Reassigning back to security team because the fix is present in proactively maintained kernels and the bug requires full machine control to trigger so we aren't going to backport it to older kernels.
Comment 9 Jan Kara 2023-09-11 14:57:11 UTC 
Apparently I got confused and the fix ea4f1009408e ("9p/xen : Fix use after free bug in xen_9pfs_front_remove due to race condition") didn't get backported even to proactively maintained branches yet. Returning back to Juergen, can you please backport? Thanks!
Comment 10 Maintenance Automation 2023-10-05 16:29:16 UTC 
SUSE-SU-2023:3988-1: An update that solves 24 vulnerabilities, contains 10 features and has 64 security fixes can now be installed.

Category: security (important)
Bug References: 1023051, 1065729, 1120059, 1177719, 1187236, 1188885, 1193629, 1194869, 1203329, 1203330, 1205462, 1206453, 1208902, 1208949, 1208995, 1209284, 1209799, 1210048, 1210169, 1210448, 1210643, 1211220, 1212091, 1212142, 1212423, 1212526, 1212857, 1212873, 1213026, 1213123, 1213546, 1213580, 1213601, 1213666, 1213733, 1213757, 1213759, 1213916, 1213921, 1213927, 1213946, 1213949, 1213968, 1213970, 1213971, 1214000, 1214019, 1214073, 1214120, 1214149, 1214180, 1214233, 1214238, 1214285, 1214297, 1214299, 1214305, 1214350, 1214368, 1214370, 1214371, 1214372, 1214380, 1214386, 1214392, 1214393, 1214397, 1214404, 1214428, 1214451, 1214635, 1214659, 1214661, 1214727, 1214729, 1214742, 1214743, 1214756, 1214813, 1214873, 1214928, 1214976, 1214988, 1215123, 1215124, 1215148, 1215221, 1215523
CVE References: CVE-2022-38457, CVE-2022-40133, CVE-2023-1192, CVE-2023-1859, CVE-2023-2007, CVE-2023-20588, CVE-2023-2177, CVE-2023-34319, CVE-2023-3610, CVE-2023-37453, CVE-2023-3772, CVE-2023-3863, CVE-2023-40283, CVE-2023-4128, CVE-2023-4133, CVE-2023-4134, CVE-2023-4147, CVE-2023-4194, CVE-2023-4273, CVE-2023-4387, CVE-2023-4459, CVE-2023-4563, CVE-2023-4569, CVE-2023-4881
Jira References: PED-2023, PED-2025, PED-3924, PED-4579, PED-4759, PED-4927, PED-4929, PED-5738, PED-6003, PED-6004
Sources used:
SUSE Real Time Module 15-SP5 (src): kernel-syms-rt-5.14.21-150500.13.18.1, kernel-source-rt-5.14.21-150500.13.18.1
openSUSE Leap 15.5 (src): kernel-syms-rt-5.14.21-150500.13.18.1, kernel-livepatch-SLE15-SP5-RT_Update_5-1-150500.11.3.1, kernel-source-rt-5.14.21-150500.13.18.1
SUSE Linux Enterprise Live Patching 15-SP5 (src): kernel-livepatch-SLE15-SP5-RT_Update_5-1-150500.11.3.1

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 11 Maintenance Automation 2023-10-10 16:35:13 UTC 
SUSE-SU-2023:4031-1: An update that solves 13 vulnerabilities, contains one feature and has 39 security fixes can now be installed.

Category: security (important)
Bug References: 1065729, 1109837, 1152446, 1154048, 1207168, 1208995, 1210169, 1212703, 1213016, 1214157, 1214380, 1214386, 1214586, 1214940, 1214943, 1214945, 1214946, 1214948, 1214949, 1214950, 1214952, 1214953, 1214961, 1214962, 1214964, 1214965, 1214966, 1214967, 1215115, 1215117, 1215121, 1215122, 1215136, 1215149, 1215152, 1215162, 1215164, 1215165, 1215207, 1215221, 1215275, 1215299, 1215467, 1215607, 1215634, 1215858, 1215860, 1215861, 1215877, 1215897, 1215898, 1215954
CVE References: CVE-2020-36766, CVE-2023-0394, CVE-2023-1192, CVE-2023-1206, CVE-2023-1859, CVE-2023-39192, CVE-2023-39193, CVE-2023-39194, CVE-2023-42754, CVE-2023-4622, CVE-2023-4623, CVE-2023-4881, CVE-2023-4921
Jira References: PED-5021
Sources used:
SUSE Linux Enterprise Live Patching 12-SP5 (src): kgraft-patch-SLE12-SP5_Update_49-1-8.3.1
SUSE Linux Enterprise Software Development Kit 12 SP5 (src): kernel-obs-build-4.12.14-122.179.1
SUSE Linux Enterprise High Performance Computing 12 SP5 (src): kernel-source-4.12.14-122.179.1, kernel-syms-4.12.14-122.179.1
SUSE Linux Enterprise Server 12 SP5 (src): kernel-source-4.12.14-122.179.1, kernel-syms-4.12.14-122.179.1
SUSE Linux Enterprise Server for SAP Applications 12 SP5 (src): kernel-source-4.12.14-122.179.1, kernel-syms-4.12.14-122.179.1

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 12 Maintenance Automation 2023-10-10 16:35:22 UTC 
SUSE-SU-2023:4030-1: An update that solves 13 vulnerabilities and has two security fixes can now be installed.

Category: security (important)
Bug References: 1207036, 1208995, 1210169, 1210643, 1212703, 1214233, 1214351, 1214380, 1214386, 1215115, 1215117, 1215150, 1215221, 1215275, 1215299
CVE References: CVE-2020-36766, CVE-2023-1192, CVE-2023-1206, CVE-2023-1859, CVE-2023-2177, CVE-2023-23454, CVE-2023-40283, CVE-2023-42753, CVE-2023-4389, CVE-2023-4622, CVE-2023-4623, CVE-2023-4881, CVE-2023-4921
Sources used:
SUSE Linux Enterprise Live Patching 15-SP2 (src): kernel-livepatch-SLE15-SP2_Update_41-1-150200.5.3.1
SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS 15-SP2 (src): kernel-obs-build-5.3.18-150200.24.166.1, kernel-source-5.3.18-150200.24.166.1, kernel-default-base-5.3.18-150200.24.166.1.150200.9.83.1, kernel-syms-5.3.18-150200.24.166.1
SUSE Linux Enterprise Server 15 SP2 LTSS 15-SP2 (src): kernel-obs-build-5.3.18-150200.24.166.1, kernel-source-5.3.18-150200.24.166.1, kernel-default-base-5.3.18-150200.24.166.1.150200.9.83.1, kernel-syms-5.3.18-150200.24.166.1
SUSE Linux Enterprise Server for SAP Applications 15 SP2 (src): kernel-obs-build-5.3.18-150200.24.166.1, kernel-source-5.3.18-150200.24.166.1, kernel-default-base-5.3.18-150200.24.166.1.150200.9.83.1, kernel-syms-5.3.18-150200.24.166.1

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 13 Maintenance Automation 2023-10-10 16:35:31 UTC 
SUSE-SU-2023:4033-1: An update that solves 12 vulnerabilities and has 39 security fixes can now be installed.

Category: security (important)
Bug References: 1065729, 1109837, 1152446, 1154048, 1208995, 1210169, 1212703, 1213016, 1214157, 1214380, 1214386, 1214586, 1214940, 1214943, 1214945, 1214946, 1214948, 1214949, 1214950, 1214952, 1214953, 1214961, 1214962, 1214964, 1214965, 1214966, 1214967, 1215115, 1215117, 1215121, 1215122, 1215136, 1215149, 1215152, 1215162, 1215164, 1215165, 1215207, 1215221, 1215275, 1215299, 1215467, 1215607, 1215634, 1215858, 1215860, 1215861, 1215877, 1215897, 1215898, 1215954
CVE References: CVE-2020-36766, CVE-2023-1192, CVE-2023-1206, CVE-2023-1859, CVE-2023-39192, CVE-2023-39193, CVE-2023-39194, CVE-2023-42754, CVE-2023-4622, CVE-2023-4623, CVE-2023-4881, CVE-2023-4921
Sources used:
SUSE Linux Enterprise Real Time 12 SP5 (src): kernel-syms-rt-4.12.14-10.144.1, kernel-source-rt-4.12.14-10.144.1

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 14 Maintenance Automation 2023-10-12 12:46:26 UTC 
SUSE-SU-2023:4058-1: An update that solves 18 vulnerabilities, contains three features and has 71 security fixes can now be installed.

Category: security (important)
Bug References: 1065729, 1152472, 1187236, 1201284, 1202845, 1206453, 1208995, 1210169, 1210643, 1210658, 1212639, 1212703, 1213123, 1213534, 1213808, 1214022, 1214037, 1214040, 1214233, 1214351, 1214479, 1214543, 1214635, 1214813, 1214873, 1214928, 1214940, 1214941, 1214942, 1214943, 1214944, 1214945, 1214946, 1214947, 1214948, 1214949, 1214950, 1214951, 1214952, 1214953, 1214954, 1214955, 1214957, 1214958, 1214959, 1214961, 1214962, 1214963, 1214964, 1214965, 1214966, 1214967, 1214986, 1214988, 1214990, 1214991, 1214992, 1214993, 1214995, 1214997, 1214998, 1215115, 1215117, 1215123, 1215124, 1215148, 1215150, 1215221, 1215275, 1215322, 1215467, 1215523, 1215581, 1215752, 1215858, 1215860, 1215861, 1215875, 1215877, 1215894, 1215895, 1215896, 1215899, 1215911, 1215915, 1215916, 1215941, 1215956, 1215957
CVE References: CVE-2023-1192, CVE-2023-1206, CVE-2023-1859, CVE-2023-2177, CVE-2023-37453, CVE-2023-39192, CVE-2023-39193, CVE-2023-39194, CVE-2023-40283, CVE-2023-4155, CVE-2023-42753, CVE-2023-42754, CVE-2023-4389, CVE-2023-4622, CVE-2023-4623, CVE-2023-4881, CVE-2023-4921, CVE-2023-5345
Jira References: PED-1549, PED-2023, PED-2025
Sources used:
openSUSE Leap 15.5 (src): kernel-source-azure-5.14.21-150500.33.20.1, kernel-syms-azure-5.14.21-150500.33.20.1
Public Cloud Module 15-SP5 (src): kernel-source-azure-5.14.21-150500.33.20.1, kernel-syms-azure-5.14.21-150500.33.20.1

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 15 Maintenance Automation 2023-10-17 16:30:20 UTC 
SUSE-SU-2023:4095-1: An update that solves 14 vulnerabilities and has eight security fixes can now be installed.

Category: security (important)
Bug References: 1176588, 1202845, 1207036, 1207270, 1208995, 1210169, 1210643, 1210658, 1212703, 1213812, 1214233, 1214351, 1214380, 1214386, 1215115, 1215117, 1215150, 1215221, 1215275, 1215299, 1215322, 1215356
CVE References: CVE-2020-36766, CVE-2023-1192, CVE-2023-1206, CVE-2023-1859, CVE-2023-2177, CVE-2023-23454, CVE-2023-4004, CVE-2023-40283, CVE-2023-42753, CVE-2023-4389, CVE-2023-4622, CVE-2023-4623, CVE-2023-4881, CVE-2023-4921
Sources used:
SUSE Linux Enterprise Live Patching 15-SP3 (src): kernel-livepatch-SLE15-SP3_Update_37-1-150300.7.5.1
SUSE Linux Enterprise High Performance Computing ESPOS 15 SP3 (src): kernel-syms-5.3.18-150300.59.138.1, kernel-source-5.3.18-150300.59.138.1, kernel-obs-build-5.3.18-150300.59.138.1, kernel-default-base-5.3.18-150300.59.138.1.150300.18.80.2
SUSE Linux Enterprise High Performance Computing LTSS 15 SP3 (src): kernel-syms-5.3.18-150300.59.138.1, kernel-source-5.3.18-150300.59.138.1, kernel-obs-build-5.3.18-150300.59.138.1, kernel-default-base-5.3.18-150300.59.138.1.150300.18.80.2
SUSE Linux Enterprise Server 15 SP3 LTSS 15-SP3 (src): kernel-syms-5.3.18-150300.59.138.1, kernel-source-5.3.18-150300.59.138.1, kernel-obs-build-5.3.18-150300.59.138.1, kernel-default-base-5.3.18-150300.59.138.1.150300.18.80.2
SUSE Linux Enterprise Server for SAP Applications 15 SP3 (src): kernel-syms-5.3.18-150300.59.138.1, kernel-source-5.3.18-150300.59.138.1, kernel-obs-build-5.3.18-150300.59.138.1, kernel-default-base-5.3.18-150300.59.138.1.150300.18.80.2
SUSE Manager Proxy 4.2 (src): kernel-source-5.3.18-150300.59.138.1, kernel-default-base-5.3.18-150300.59.138.1.150300.18.80.2
SUSE Manager Retail Branch Server 4.2 (src): kernel-source-5.3.18-150300.59.138.1, kernel-default-base-5.3.18-150300.59.138.1.150300.18.80.2
SUSE Manager Server 4.2 (src): kernel-source-5.3.18-150300.59.138.1, kernel-default-base-5.3.18-150300.59.138.1.150300.18.80.2
SUSE Enterprise Storage 7.1 (src): kernel-syms-5.3.18-150300.59.138.1, kernel-source-5.3.18-150300.59.138.1, kernel-obs-build-5.3.18-150300.59.138.1, kernel-default-base-5.3.18-150300.59.138.1.150300.18.80.2
SUSE Linux Enterprise Micro 5.1 (src): kernel-default-base-5.3.18-150300.59.138.1.150300.18.80.2
SUSE Linux Enterprise Micro 5.2 (src): kernel-default-base-5.3.18-150300.59.138.1.150300.18.80.2
SUSE Linux Enterprise Micro for Rancher 5.2 (src): kernel-default-base-5.3.18-150300.59.138.1.150300.18.80.2

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 16 Maintenance Automation 2023-10-20 12:30:08 UTC 
SUSE-SU-2023:4142-1: An update that solves 13 vulnerabilities and has eight security fixes can now be installed.

Category: security (important)
Bug References: 1176588, 1202845, 1207270, 1208995, 1210169, 1210643, 1210658, 1212703, 1213812, 1214233, 1214351, 1214380, 1214386, 1215115, 1215117, 1215150, 1215221, 1215275, 1215299, 1215322, 1215356
CVE References: CVE-2020-36766, CVE-2023-1192, CVE-2023-1206, CVE-2023-1859, CVE-2023-2177, CVE-2023-4004, CVE-2023-40283, CVE-2023-42753, CVE-2023-4389, CVE-2023-4622, CVE-2023-4623, CVE-2023-4881, CVE-2023-4921
Sources used:

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 17 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 18 Petr Mladek 2023-11-30 15:25:21 UTC 
It seems that the fix has been backported to all affected branches
back to 4.12 based kernels.

=> reassigning back to the security team for further tracking.

Note that the patches reference CVE-2023-1859 so that there
is not longer need to dispute the CVE.
Comment 19 Robert Frohl 2024-05-06 11:56:50 UTC 
done, closing