DEBIAN-CVE-2024-50257

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Source
https://security-tracker.debian.org/tracker/CVE-2024-50257
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-50257.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2024-50257
Upstream
Published
2024-11-09T11:15:11Z
Modified
2025-09-19T07:34:11.576312Z
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved: netfilter: Fix use-after-free in getinfo() ip6tablenat module unload has refcnt warning for UAF. call trace is: WARNING: CPU: 1 PID: 379 at kernel/module/main.c:853 moduleput+0x6f/0x80 Modules linked in: ip6tablenat(-) CPU: 1 UID: 0 PID: 379 Comm: ip6tables Not tainted 6.12.0-rc4-00047-gc2ee9f594da8-dirty #205 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 RIP: 0010:moduleput+0x6f/0x80 Call Trace: <TASK> getinfo+0x128/0x180 doip6tgetctl+0x6a/0x430 nfgetsockopt+0x46/0x80 ipv6getsockopt+0xb9/0x100 rawv6getsockopt+0x42/0x190 dosockgetsockopt+0xaa/0x180 _sysgetsockopt+0x70/0xc0 _x64sysgetsockopt+0x20/0x30 dosyscall64+0xa2/0x1a0 entrySYSCALL64afterhwframe+0x77/0x7f Concurrent execution of module unload and getinfo() trigered the warning. The root cause is as follows: cpu0 cpu1 moduleexit //mod->state = MODULESTATEGOING ip6tablenatexit xtunregistertemplate kfree(t) //removed from templlist getinfo() t = xtfindtablelock listforeachentry(tmpl, &xttemplates[af]...) if (strcmp(tmpl->name, name)) continue; //table not found trymoduleget listforeachentry(t, &xtnet->tables[af]...) return t; //not get refcnt moduleput(t->me) //uaf unregisterpernetsubsys //remove table from xtnet list While xttable module was going away and has been removed from xttemplates list, we couldnt get refcnt of xttable->me. Check module in xt_net->tables list re-traversal to fix it.

References

Affected packages

Debian:12 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.1.119-1

Affected versions

6.*

6.1.27-1
6.1.37-1
6.1.38-1
6.1.38-2~bpo11+1
6.1.38-2
6.1.38-3
6.1.38-4~bpo11+1
6.1.38-4
6.1.52-1
6.1.55-1~bpo11+1
6.1.55-1
6.1.64-1
6.1.66-1
6.1.67-1
6.1.69-1~bpo11+1
6.1.69-1
6.1.76-1~bpo11+1
6.1.76-1
6.1.82-1
6.1.85-1
6.1.90-1~bpo11+1
6.1.90-1
6.1.94-1~bpo11+1
6.1.94-1
6.1.98-1
6.1.99-1
6.1.106-1
6.1.106-2
6.1.106-3
6.1.112-1
6.1.115-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.11.7-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.11.7-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:11 / linux-6.1

Package

Name
linux-6.1
Purl
pkg:deb/debian/linux-6.1?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.1.119-1~deb11u1

Affected versions

6.*

6.1.106-3~deb11u1
6.1.106-3~deb11u2
6.1.106-3~deb11u3
6.1.112-1~deb11u1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}