CVE-2013-2028
HighPublic exploitThe ngx_http_parse_chunked function in http/ngx_http_parse.c in nginx 1.3.9 through 1.4.0 allows remote attackers to cause a denial of service (crash) and execute arbitrary code via a chunked Transfer-Encoding request with a large chunk size, which triggers an integer signedness…
Published Jul 18, 2013 · Updated Aug 6, 2024
Key Facts
Patch immediately- CVE-2013-2028 is a high-severity vulnerability (CVSS 7.5 v2) affecting Nginx (F5), Fedora (Fedoraproject).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 87% probability of exploitation in the next 30 days.
- Fixed versions are available, including Nginx 1.4.0.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v2
7.5
AV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS (30-day exploit likelihood)
87%
Higher than 99.7% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2013-2028 brief as a PDF
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Description
The ngx_http_parse_chunked function in http/ngx_http_parse.c in nginx 1.3.9 through 1.4.0 allows remote attackers to cause a denial of service (crash) and execute arbitrary code via a chunked Transfer-Encoding request with a large chunk size, which triggers an integer signedness error and a stack-based buffer overflow.
Affected Products
7 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| NginxF5 | See advisory | 1.4.0 |
| FedoraFedoraproject | 19 | n/a |
Patched Releases
Nginx
1.4.0
Timeline
Publicly disclosed
Jul 18, 2013
Last updated
Aug 6, 2024
Weakness Type
- CWE-787 Out-of-bounds Write
References
- advisoryFEDORA-2013-7560
- advisory55181
- advisoryGLSA-201310-04
- advisory59699
- patch[nginx-announce] 20130507 nginx security advisory (CVE-2013-2028)
FAQ
Common Questions.
The ngx_http_parse_chunked function in http/ngx_http_parse.c in nginx 1.3.9 through 1.4.0 allows remote attackers to cause a denial of service (crash) and execute arbitrary code via a chunked Transfer-Encoding request with a large chunk size, which triggers an integer signedness error and a stack-based buffer overflow.
Affected: Nginx (F5); Fedora (Fedoraproject) versions 19. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Nginx 1.4.0.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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