inet: RAW sockets using IPPROTO_RAW MUST drop incoming ICMP
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 6.1.187, 6.6.128, 6.12.75, 6.18.14, 6.19.4
- 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: yes
- Technical impact: partial
Summary
In the Linux kernel, the following vulnerability has been resolved: inet: RAW sockets using IPPROTO_RAW MUST drop incoming ICMP Yizhou Zhao reported that simply having one RAW socket on protocol IPPROTO_RAW (255) was dangerous. socket(AF_INET, SOCK_RAW, 255); A malicious incoming ICMP packet can set the protocol field to 255 and match this socket, leading to FNHE cache changes. inner = IP(src="192.168.2.1", dst="8.8.8.8", proto=255)/Raw("TEST") pkt = IP(src="192.168.1.1", dst="192.168.2.1")/ICMP(type=3, code=4, nexthopmtu=576)/inner "man 7 raw" states: A protocol of IPPROTO_RAW implies enabled IP_HDRINCL and is able to send any IP protocol that is specified in the passed header. Receiving of all IP protocols via IPPROTO_RAW is not possible using raw sockets. Make sure we drop these malicious packets.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- Linux Linux
From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in 47276297140ee6712646f9b19fb04fe26daedd01; From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in db76b75ede3810e7cf9cfea5067d4f3e0993768b; From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in 19e42490c89bac9a388f28179e66bebbef350f99; From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in 531c1aec81bfe19d00af13da5531fbb8209e4bd2; From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in 719d3932b8f6e3348ce2f0ac58e278301fc17575; From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in c89477ad79446867394360b29bb801010fc3ff22
- Linux Linux
2.6.12
- KernelLinux
From 2.6.12 · fixed in 6.1.187; From 6.2.0 · fixed in 6.6.128; From 6.7.0 · fixed in 6.12.75; From 6.13.0 · fixed in 6.18.14; From 6.19.0 · fixed in 6.19.4