CVE-2005-4077 Integer overflow in n/a

Medium 4.6 Published 8 Dec 2005 Updated 7 Aug 2024

Off-by-one errors in libcurl allow attackers to trigger buffer overflows via malformed URLs, causing denial of service or bypassing PHP security restrictions.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2005-4077?

CVE-2005-4077 is a medium-severity vulnerability in n/a, published on 8 Dec 2005. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Multiple off-by-one errors in the cURL library (libcurl) 7.11.2 through 7.15.0 allow local users to trigger a buffer overflow and cause a denial of service or bypass PHP security restrictions via certain URLs that (1) are malformed in a way that prevents a terminating null byte from being added to either a hostname or path buffer, or (2) contain a "?" separator in the hostname portion, which causes a "/" to be prepended to the resulting string.

Weakness: CWE-189

Which versions are affected by CVE-2005-4077?

It affects 1 product.

Linux distribution packages (12)

`curl` Red Hat:enterprise_linux:4::as	All versions	`0:7.12.1-8.rhel4`
`curl-debuginfo` Red Hat:enterprise_linux:4::as	All versions	`0:7.12.1-8.rhel4`
`curl-devel` Red Hat:enterprise_linux:4::as	All versions	`0:7.12.1-8.rhel4`
`curl` Red Hat:enterprise_linux:4::desktop	All versions	`0:7.12.1-8.rhel4`
`curl-debuginfo` Red Hat:enterprise_linux:4::desktop	All versions	`0:7.12.1-8.rhel4`
`curl-devel` Red Hat:enterprise_linux:4::desktop	All versions	`0:7.12.1-8.rhel4`
`curl` Red Hat:enterprise_linux:4::es	All versions	`0:7.12.1-8.rhel4`
`curl-debuginfo` Red Hat:enterprise_linux:4::es	All versions	`0:7.12.1-8.rhel4`
`curl-devel` Red Hat:enterprise_linux:4::es	All versions	`0:7.12.1-8.rhel4`
`curl` Red Hat:enterprise_linux:4::ws	All versions	`0:7.12.1-8.rhel4`
`curl-debuginfo` Red Hat:enterprise_linux:4::ws	All versions	`0:7.12.1-8.rhel4`
`curl-devel` Red Hat:enterprise_linux:4::ws	All versions	`0:7.12.1-8.rhel4`

Products include Daniel Stenberg Curl.

How do I fix CVE-2005-4077?

Upgrade to a fixed version.

Is CVE-2005-4077 being exploited?

There is no known exploitation of CVE-2005-4077 in the wild and no public exploit code.

Sources

Also known as CURL-CVE-2005-4077, DEBIAN-CVE-2005-4077, GHSA-c4xg-24hh-cq78, RHSA-2005:875.