sctp: properly validate chunk size in sctp_sf_ootb()
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 4.19.324, 5.4.286, 5.10.230, 5.15.172, 6.1.117, and 2 more
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
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
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Linux Linux
From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in 67b9a278b80f71ec62091ded97c6bcbea33b5ec3; From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in 9b5d42aeaf1a52f73b003a33da6deef7df34685f; From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in 40b283ba76665437bc2ac72079c51b57b25bff9e; From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in a758aa6a773bb872196bcc3173171ef8996bddf0; From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in bf9bff13225baf5f658577f7d985fc4933d79527; From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in d3fb3cc83cf313e4f87063ce0f3fea76b071567b; From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in 8820d2d6589f62ee5514793fff9b50c9f8101182; From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in 0ead60804b64f5bd6999eec88e503c6a1a242d41
- Linux Linux
2.6.12
- KernelLinux
From 2.6.12 · fixed in 4.19.324; From 4.20.0 · fixed in 5.4.286; From 5.5.0 · fixed in 5.10.230; From 5.11.0 · fixed in 5.15.172; From 5.16.0 · fixed in 6.1.117; From 6.2.0 · fixed in 6.6.61; From 6.7.0 · fixed in 6.11.8
References 8
git.kernel.org
- stable/c/67b9a278b80f71ec62091ded97c6bcbea33b5ec3
- stable/c/9b5d42aeaf1a52f73b003a33da6deef7df34685f
- stable/c/40b283ba76665437bc2ac72079c51b57b25bff9e
- stable/c/a758aa6a773bb872196bcc3173171ef8996bddf0
- stable/c/bf9bff13225baf5f658577f7d985fc4933d79527
- stable/c/d3fb3cc83cf313e4f87063ce0f3fea76b071567b
- stable/c/8820d2d6589f62ee5514793fff9b50c9f8101182
- stable/c/0ead60804b64f5bd6999eec88e503c6a1a242d41