Buffer overflow in Haxx Curl
CVE-2013-2174
Heap-based buffer overflow in the curl_easy_unescape function in lib/escape.c in cURL and libcurl 7.7 through 7.30.0 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted string ending in a "%" (percent) character.
Vulnerability class: Buffer Overflow
EPSS: 0.111 (95.5th percentile) — read the EPSS interpretation.
Affected products
- Haxx Curl — versions 7.7, 7.7.1, 7.7.2
- Haxx Libcurl — versions 7.7, 7.7.1, 7.7.2
- Canonical Ubuntu_linux — versions 10.04, 12.04, 12.10
- Opensuse — versions 11.4
- Redhat Enterprise_linux — versions 5, 6.0
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (x_refsource_CONFIRM)
- secalert@redhat.com (x_refsource_CONFIRM)
- secalert@redhat.com (vendor-advisory, x_refsource_SUSE)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
- secalert@redhat.com (x_refsource_CONFIRM, Exploit, Patch)
- secalert@redhat.com (vdb-entry, x_refsource_BID)
- secalert@redhat.com (x_refsource_UBUNTU, vendor-advisory)
- secalert@redhat.com (vendor-advisory, x_refsource_DEBIAN)
- secalert@redhat.com (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2013-2174?
- CVE-2013-2174 is a vulnerability in Haxx Curl, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. Published 2013-07-31.
- Is CVE-2013-2174 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.