PT-2015-6075 · Curl+4 · Libcurl+5

Hanno Böck · Published 2015-04-22 · Updated 2024-06-15 · CVE-2015-3144

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions cURL and libcurl versions 7.37.0 through 7.41.0

Description The issue arises from the fix hostname() function, which fails to properly handle a zero-length host name in a URL, such as "http://:80" or ":80". This can lead to an out-of-bounds read or write and cause a denial of service (crash). The function incorrectly indexes the hostname pointer with a -1 offset when encountering a zero-length hostname, potentially resulting in a crash or other unspecified impacts.

Recommendations For cURL and libcurl versions 7.37.0 through 7.41.0, consider avoiding the use of URLs with zero-length hostnames until a patch is available. As a temporary workaround, restrict the input to the fix hostname() function to prevent zero-length hostnames from being processed.

Fix

DoS

Buffer Overflow

Weakness Enumeration

CWE-124

CWE-119

Related Identifiers

ALT-PU-2015-1396

CVE-2015-3144

DSA-3232-1

OPENSUSE-SU-2024:10303-1

SUSE-SU-2015:0990-1

USN-2591-1

Affected Products

Alt Linux

Junos

Suse

Ubuntu

Curl

Libcurl

References · 72

• https://ubuntu.com/security/CVE-2015-3145 · Vendor Advisory
• http://lists.opensuse.org/opensuse-updates/2015-04/msg00057.html · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2015-3144 · Security Note
• https://ubuntu.com/security/CVE-2015-3153 · Vendor Advisory
• https://security.gentoo.org/glsa/201509-02 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2015:0990-1 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-3232-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-2591-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2015-3144 · Vendor Advisory
• http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157188.html · Vendor Advisory
• http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157017.html · Vendor Advisory
• https://osv.dev/vulnerability/CURL-CVE-2015-3144 · Vendor Advisory
• http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155957.html · Vendor Advisory
• http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-3148 · Vendor Advisory