Buffer overflow in Apache Http_server
CVE-2022-23943
Out-of-bounds Write vulnerability in mod_sed of Apache HTTP Server allows an attacker to overwrite heap memory with possibly attacker provided data. This issue affects Apache HTTP Server 2.4 version 2.4.52 and prior versions.
Vulnerability class: Integer Overflow
EPSS: 0.504 (98.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Apache Http_server
- Apache Software Foundation Http Server — versions 2.4
- Oracle Http_server — versions 12.2.1.3.0, 12.2.1.4.0
- Oracle Zfs_storage_appliance_kit — versions 8.8
- Debian Debian_linux — versions 9.0
- Fedoraproject Fedora — versions 34, 35, 36
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@apache.org (x_refsource_MISC, Vendor Advisory)
- security@apache.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- security@apache.org (x_refsource_FEDORA, vendor-advisory, Third Party Advisory)
- security@apache.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- security@apache.org (x_refsource_FEDORA, vendor-advisory, Third Party Advisory)
- security@apache.org (x_refsource_FEDORA, vendor-advisory, Third Party Advisory)
- security@apache.org (Patch, Third Party Advisory, x_refsource_MISC)
- security@apache.org (x_refsource_CONFIRM, Third Party Advisory)
- security@apache.org (x_refsource_CONFIRM, Third Party Advisory)
- security@apache.org (x_refsource_CONFIRM, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-23943?
- CVE-2022-23943 is a critical-severity vulnerability in Apache Http_server, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2022-03-14.
- How severe is CVE-2022-23943?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2022-23943 known to be exploited?
- 17 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.