Possible buffer overflow when parsing multipart content in mod_lua of Apache HTTP Server 2.4.51 and earlier
45Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendepss 97%
from disclosure to weapon467 days
Published on NVDDec 20
1st PoC+467d
exploitation probability
97%top 1% of all CVEs
observed exploitation
nono source reports it
3 public exploit(s)
A carefully crafted request body can cause a buffer overflow in the mod_lua multipart parser (r:parsebody() called from Lua scripts). The Apache httpd team is not aware of an exploit for the vulnerabilty though it might be possible to craft one. This issue affects Apache HTTP Server 2.4.51 and earlier.
Affected products
Apache Software Foundation · Apache HTTP Serverpublic PoCs found — 3✓ VexDay Proof
exploitdb✓ VexDay Proofwww.exploit-db.com/exploits/51193githubgithub.com/nuPacaChi/-CVE-2021-44790★ 4cve_referencepacketstormsecurity.com/files/171631/Apache-2.4.x-Buffer-Overflow.htmlunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
http://httpd.apache.org/security/vulnerabilities_24.htmlhttp://packetstormsecurity.com/files/171631/Apache-2.4.x-Buffer-Overflow.htmlhttp://seclists.org/fulldisclosure/2022/May/33http://seclists.org/fulldisclosure/2022/May/35http://seclists.org/fulldisclosure/2022/May/38https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BFSWOH4X77CV7AH7C4RMHUBDWKQDL4YH/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGWILBORT67SHMSLYSQZG2NMXGCMPUZO/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X73C35MMMZGBVPQQCH7LQZUMYZNQA5FO/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z7H26WJ6TPKNWV3QKY4BHKUKQVUTZJTD/https://security.gentoo.org/glsa/202208-20https://security.netapp.com/advisory/ntap-20211224-0001/https://support.apple.com/kb/HT213255