VDB
CVE-2021-22600
CVE-2021-22600
PUBLISHED
KEV
A double free bug in packet_set_ring() in net/packet/af_packet.c can be exploited by a local user through crafted syscalls to escalate privileges or deny service. We recommend upgrading kernel past the effected versions or rebuilding past ec6af094ea28f0f2dda1a6a33b14cd57e36a9755
EPSS 0.18% · 39.3th percentile
Risk Scores
EPSS Score
0.18%
39.3th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:18.04:LTS | linux-oracle-5.3 | *, *, 5.3.0-1018.20~18.04.1 |
| Ubuntu:20.04:LTS | linux-azure-5.13 | 5.13.0-1013.15~20.04.1, 5.13.0-1012.14~20.04.1, 0 |
| Ubuntu:Pro:FIPS-updates:18.04:LTS | linux-aws-fips | 4.15.0-2057.59, 4.15.0-2056.58, 4.15.0-2054.56 |
| Ubuntu:18.04:LTS | linux-gcp | 4.15.0-1018.19, 5.0.0-1029.30~18.04.1, 5.0.0-1025.26~18.04.1 |
| Ubuntu:20.04:LTS | linux-oem-5.6 | 5.6.0-1036.39, 5.6.0-1035.37, 5.6.0-1034.36 |
| Ubuntu:Pro:FIPS-updates:18.04:LTS | linux-azure-fips | 4.15.0-2013.15, 4.15.0-2008.9, 4.15.0-2007.8 |
| Ubuntu:Pro:16.04:LTS | linux-hwe | 4.15.0-46.49~16.04.1, 4.15.0-45.48~16.04.1, 4.15.0-42.45~16.04.1 |
| Ubuntu:18.04:LTS | linux-kvm | 4.15.0-1087.89, 0, 4.15.0-1002.2 |
| Ubuntu:20.04:LTS | linux-raspi2 | 5.4.0-1004.4, 5.4.0-1006.6, 0 |
| Ubuntu:18.04:LTS | linux-gke-4.15 | 4.15.0-1067.70, 4.15.0-1066.69, 4.15.0-1064.67 |
| Ubuntu:20.04:LTS | linux-kvm | 5.4.0-1044.46, 5.4.0-1040.41, 5.4.0-1039.40 |
| Ubuntu:20.04:LTS | linux-aws-5.8 | *, 5.8.0-1038.40~20.04.1, 5.8.0-1035.37~20.04.1 |
| Ubuntu:Pro:16.04:LTS | linux-aws-hwe | *, 4.15.0-1031.33~16.04.1, 4.15.0-1032.34~16.04.1 |
| Ubuntu:Pro:FIPS:20.04:LTS | linux-aws-fips | 5.4.0-1021.21+fips2, 0 |
| Ubuntu:18.04:LTS | linux-azure-4.15 | 4.15.0-1096.106, 4.15.0-1099.110, 4.15.0-1100.111 |
| Ubuntu:Pro:16.04:LTS | linux-gcp | 4.13.0-1019.23, *, 4.13.0-1008.11 |
| Ubuntu:Pro:FIPS-updates:20.04:LTS | linux-gcp-fips | 5.4.0-1021.21+fips1, 0 |
| Ubuntu:20.04:LTS | linux-ibm | 5.4.0-1014.15, 5.4.0-1006.7, 5.4.0-1004.5 |
| Ubuntu:18.04:LTS | linux-oracle-5.4 | *, *, 5.4.0-1048.52~18.04.1 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | 0, 6.8.0-2019.20 |
…and 68 more
Exploit Intelligence
- Proof-Of-Concept to check privileges of af_packet.c for validating the privileges acquired by any hacker upon successful exploitation of CVE-2021-22600 (github-poc-repo)
- Proof-Of-Concept to check privileges of af_packet.c for validating the privileges acquired by any hacker upon successful exploitation of CVE-2021-22600 (github-poc-repo)
- Proof-Of-Concept to check privileges of af_packet.c for validating the privileges acquired by any hacker upon successful exploitation of CVE-2021-22600 (github-poc-repo)
- Proof-Of-Concept to check privileges of af_packet.c for validating the privileges acquired by any hacker upon successful exploitation of CVE-2021-22600 (github-poc-repo)
- Proof-Of-Concept to check privileges of af_packet.c for validating the privileges acquired by any hacker upon successful exploitation of CVE-2021-22600 (github-poc-repo)
- Proof-Of-Concept to check privileges of af_packet.c for validating the privileges acquired by any hacker upon successful exploitation of CVE-2021-22600 (github-poc-repo)
- Proof-Of-Concept to check privileges of af_packet.c for validating the privileges acquired by any hacker upon successful exploitation of CVE-2021-22600 (github-poc-repo)
- Proof-Of-Concept to check privileges of af_packet.c for validating the privileges acquired by any hacker upon successful exploitation of CVE-2021-22600 (github-poc-repo)
- Proof-Of-Concept to check privileges of af_packet.c for validating the privileges acquired by any hacker upon successful exploitation of CVE-2021-22600 (github-poc-repo)
- Proof-Of-Concept to check privileges of af_packet.c for validating the privileges acquired by any hacker upon successful exploitation of CVE-2021-22600 (github-poc)
…and 77 more exploits
Timeline
- Jan 16, 1970 VulnCheck XDB Entry
- Jan 16, 1970 VulnCheck XDB Entry
- Jan 17, 1970 VulnCheck XDB Entry
- Jan 19, 1970 VulnCheck XDB Entry
- Jan 19, 1970 VulnCheck XDB Entry
- Jan 19, 1970 VulnCheck XDB Entry
- Jan 19, 1970 VulnCheck XDB Entry
- Jan 19, 1970 VulnCheck XDB Entry
- Jan 19, 1970 VulnCheck XDB Entry
- Jan 19, 1970 VulnCheck XDB Entry
- Jan 19, 1970 VulnCheck XDB Entry
- Jan 19, 1970 VulnCheck XDB Entry
References
- https://ubuntu.com/security/CVE-2021-22600 third-party-advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=ec6af094ea28f0f2dda1a6a33b14cd57e36a9755 third-party-advisory
- https://ubuntu.com/security/notices/USN-5266-1 vendor-advisory
- https://ubuntu.com/security/notices/USN-5278-1 vendor-advisory
- https://ubuntu.com/security/notices/USN-5294-1 vendor-advisory
- https://ubuntu.com/security/notices/USN-5295-1 vendor-advisory
- https://ubuntu.com/security/notices/USN-5294-2 vendor-advisory
- https://ubuntu.com/security/notices/USN-5295-2 vendor-advisory
- https://ubuntu.com/security/notices/USN-5298-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-22600 third-party-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog third-party-advisory