CVE-2011-4315
CVE-2011-4315 is a medium-severity vulnerability in F5 Nginx with a CVSS 2.0 base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: Medium (CVSS 2.0 base score 6.8)
- EPSS exploit prediction: 6% (93rd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: F5 Nginx
- Published:
- Last modified:
Description
Heap-based buffer overflow in compression-pointer processing in core/ngx_resolver.c in nginx before 1.0.10 allows remote resolvers to cause a denial of service (daemon crash) or possibly have unspecified other impact via a long response.
Frequently asked questions
- What is CVE-2011-4315?
- Heap-based buffer overflow in compression-pointer processing in core/ngx_resolver.c in nginx before 1.0.10 allows remote resolvers to cause a denial of service (daemon crash) or possibly have unspecified other impact via a long response.
- How severe is CVE-2011-4315?
- CVE-2011-4315 has a CVSS 2.0 base score of 6.8, rated medium severity.
- Is CVE-2011-4315 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2011-4315?
- CVE-2011-4315 primarily affects F5 Nginx. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2011-4315?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2011-4315 published?
- CVE-2011-4315 was published on 2011-12-08 and last updated on 2026-06-16.
References
- http://lists.fedoraproject.org/pipermail/package-announce/2011-December/070569.html
- http://lists.opensuse.org/opensuse-security-announce/2011-12/msg00005.html
- http://openwall.com/lists/oss-security/2011/11/17/10
- http://openwall.com/lists/oss-security/2011/11/17/8
- http://secunia.com/advisories/47097
- http://secunia.com/advisories/48577
- http://security.gentoo.org/glsa/glsa-201203-22.xml
- http://trac.nginx.org/nginx/changeset/4268/nginx
- http://www.nginx.org/en/CHANGES-1.0
- http://www.securityfocus.com/bid/50710
Affected products (5)
- cpe:2.3:a:f5:nginx:*:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:16:*:*:*:*:*:*:*
- cpe:2.3:a:suse:studio:1.2:*:*:*:standard:*:*:*
- cpe:2.3:a:suse:studio_onsite:1.2:*:*:*:*:*:*:*
- cpe:2.3:a:suse:webyast:1.2:*:*:*:*:*:*:*
More vulnerabilities in F5 Nginx
- CVE-2017-20005 — Critical (CVSS 9.8): NGINX before 1.13.6 has a buffer overflow for years that exceed four digits, as demonstrated by a file with a…
- CVE-2016-0746 — Critical (CVSS 9.8): Use-after-free vulnerability in the resolver in nginx 0.6.18 through 1.8.0 and 1.9.x before 1.9.10 allows remote…
- CVE-2009-3555 — Critical (CVSS 9.8): The TLS protocol, and the SSL protocol 3.0 and possibly earlier, as used in Microsoft Internet Information Services…
- CVE-2016-1247 — High (CVSS 7.8): The nginx package before 1.6.2-5+deb8u3 on Debian jessie, the nginx packages before 1.4.6-1ubuntu3.6 on Ubuntu 14.04…
- CVE-2021-23017 — High (CVSS 7.7): A security issue in nginx resolver was identified, which might allow an attacker who is able to forge UDP packets from…
- CVE-2023-44487 — High (CVSS 7.5): The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset…
Other CWE-787 (Out-of-bounds Write) vulnerabilities
- CVE-2026-42369 — Critical (CVSS 10.0): GV-VMS V20 is a Video Monitoring Software used to gather the feeds of many surveillance cameras and manage other…
- CVE-2026-4746 — Critical (CVSS 10.0): Out-of-bounds Write vulnerability in timeplus-io proton (base/poco/Foundation/src modules). This vulnerability is…
- CVE-2025-43300 — Critical (CVSS 10.0): An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 15.8.5 and iPadOS…
- CVE-2025-24201 — Critical (CVSS 10.0): An out-of-bounds write issue was addressed with improved checks to prevent unauthorized actions. This issue is fixed in…
- CVE-2024-42479 — Critical (CVSS 10.0): llama.cpp provides LLM inference in C/C++. The unsafe `data` pointer member in the `rpc_tensor` structure can cause…
- CVE-2024-39791 — Critical (CVSS 10.0): Stack-based buffer overflow vulnerabilities affecting Vonets industrial wifi bridge relays and wifi bridge…