CVE-2024-50299: sctp: properly validate chunk size in sctp_sf_ootb()
First published: Tue Nov 19 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: sctp: properly validate chunk size in sctp_sf_ootb() A size validation fix similar to that in Commit 50619dbf8db7 ("sctp: add size validation when walking chunks") is also required in sctp_sf_ootb() to address a crash reported by syzbot: BUG: KMSAN: uninit-value in sctp_sf_ootb+0x7f5/0xce0 net/sctp/sm_statefuns.c:3712 sctp_sf_ootb+0x7f5/0xce0 net/sctp/sm_statefuns.c:3712 sctp_do_sm+0x181/0x93d0 net/sctp/sm_sideeffect.c:1166 sctp_endpoint_bh_rcv+0xc38/0xf90 net/sctp/endpointola.c:407 sctp_inq_push+0x2ef/0x380 net/sctp/inqueue.c:88 sctp_rcv+0x3831/0x3b20 net/sctp/input.c:243 sctp4_rcv+0x42/0x50 net/sctp/protocol.c:1159 ip_protocol_deliver_rcu+0xb51/0x13d0 net/ipv4/ip_input.c:205 ip_local_deliver_finish+0x336/0x500 net/ipv4/ip_input.c:233
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=2.6.12<4.19.324 | |
| Linux Kernel | >=4.20<5.4.286 | |
| Linux Kernel | >=5.5<5.10.230 | |
| Linux Kernel | >=5.11<5.15.172 | |
| Linux Kernel | >=5.16<6.1.117 | |
| Linux Kernel | >=6.2<6.6.61 | |
| Linux Kernel | >=6.7<6.11.8 | |
| Linux Kernel | =6.12-rc1 | |
| Linux Kernel | =6.12-rc2 | |
| Linux Kernel | =6.12-rc3 | |
| Linux Kernel | =6.12-rc4 | |
| Linux Kernel | =6.12-rc5 | |
| Linux Kernel | =6.12-rc6 | |
| debian/linux | <=5.10.223-1<=5.10.226-1 | 6.1.123-1 6.1.128-1 6.12.12-1 6.12.15-1 |
| debian/linux-6.1 | 6.1.119-1~deb11u1 |
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Reference Links
- https://git.kernel.org/stable/c/67b9a278b80f71ec62091ded97c6bcbea33b5ec3
- https://git.kernel.org/stable/c/9b5d42aeaf1a52f73b003a33da6deef7df34685f
- https://git.kernel.org/stable/c/40b283ba76665437bc2ac72079c51b57b25bff9e
- https://git.kernel.org/stable/c/a758aa6a773bb872196bcc3173171ef8996bddf0
- https://git.kernel.org/stable/c/bf9bff13225baf5f658577f7d985fc4933d79527
- https://git.kernel.org/stable/c/d3fb3cc83cf313e4f87063ce0f3fea76b071567b
- https://git.kernel.org/stable/c/8820d2d6589f62ee5514793fff9b50c9f8101182
- https://git.kernel.org/stable/c/0ead60804b64f5bd6999eec88e503c6a1a242d41
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-50299
- https://nvd.nist.gov/vuln/detail/CVE-2024-50299
- https://launchpad.net/bugs/cve/CVE-2024-50299
- https://security-tracker.debian.org/tracker/CVE-2024-50299
- https://ubuntu.com/security/CVE-2024-50299
- https://git.kernel.org/linus/0ead60804b64f5bd6999eec88e503c6a1a242d41
Frequently Asked Questions
What is the severity of CVE-2024-50299?
The severity of CVE-2024-50299 has yet to be classified, but it involves a validation issue in the Linux kernel's sctp_sf_ootb() function.
How do I fix CVE-2024-50299?
To fix CVE-2024-50299, ensure your Linux kernel is updated to a version that addresses the size validation issue in sctp_sf_ootb().
Which Linux kernel versions are affected by CVE-2024-50299?
CVE-2024-50299 affects multiple Linux kernel versions ranging from 2.6.12 up to 6.12-rc6.
What is the specific nature of the vulnerability in CVE-2024-50299?
CVE-2024-50299 relates to improper validation of chunk sizes, which could lead to potential exploitation.
Is there a public reference for CVE-2024-50299?
Yes, a public reference for CVE-2024-50299 can be found in the Linux kernel's code commits addressing the vulnerability.
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