CVE-2022-49017

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Source
https://nvd.nist.gov/vuln/detail/CVE-2022-49017
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49017.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2022-49017
Related
Published
2024-10-21T20:15:12Z
Modified
2024-10-24T19:49:34.241324Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved:

tipc: re-fetch skb cb after tipcmsgvalidate

As the call trace shows, the original skb was freed in tipcmsgvalidate(), and dereferencing the old skb cb would cause an use-after-free crash.

BUG: KASAN: use-after-free in tipccryptorcvcomplete+0x1835/0x2240 [tipc] Call Trace: <IRQ> tipccryptorcvcomplete+0x1835/0x2240 [tipc] tipccryptorcv+0xd32/0x1ec0 [tipc] tipcrcv+0x744/0x1150 [tipc] ... Allocated by task 47078: kmemcacheallocnode+0x158/0x4d0 _allocskb+0x1c1/0x270 tipcbufacquire+0x1e/0xe0 [tipc] tipcmsgcreate+0x33/0x1c0 [tipc] tipclinkbuildprotomsg+0x38a/0x2100 [tipc] tipclinktimeout+0x8b8/0xef0 [tipc] tipcnodetimeout+0x2a1/0x960 [tipc] calltimerfn+0x2d/0x1c0 ... Freed by task 47078: tipcmsgvalidate+0x7b/0x440 [tipc] tipccryptorcvcomplete+0x4b5/0x2240 [tipc] tipccryptorcv+0xd32/0x1ec0 [tipc] tipcrcv+0x744/0x1150 [tipc]

This patch fixes it by re-fetching the skb cb from the new allocated skb after calling tipcmsgvalidate().

References

Affected packages

Debian:11 / 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
5.10.158-1

Affected versions

5.*

5.10.46-4
5.10.46-5
5.10.70-1~bpo10+1
5.10.70-1
5.10.84-1
5.10.92-1~bpo10+1
5.10.92-1
5.10.92-2
5.10.103-1~bpo10+1
5.10.103-1
5.10.106-1
5.10.113-1
5.10.120-1~bpo10+1
5.10.120-1
5.10.127-1
5.10.127-2~bpo10+1
5.10.127-2
5.10.136-1
5.10.140-1
5.10.148-1
5.10.149-1
5.10.149-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

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
6.0.12-1

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
6.0.12-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}