CVE-2007-4840

Name	CVE-2007-4840
Description	PHP 5.2.4 and earlier allows context-dependent attackers to cause a denial of service (application crash) via (1) a long string in the out_charset parameter to the iconv function; or a long string in the charset parameter to the (2) iconv_mime_decode_headers, (3) iconv_mime_decode, or (4) iconv_strlen function. NOTE: this might not be a vulnerability in most web server environments that support multiple threads, unless these issues can be demonstrated for code execution.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
glibc (PTS)	jessie, jessie (lts)	2.19-18+deb8u14	fixed
	stretch (security)	2.24-11+deb9u1	fixed
	stretch (lts), stretch	2.24-11+deb9u7	fixed
	buster (security), buster, buster (lts)	2.28-10+deb10u4	fixed
	bullseye	2.31-13+deb11u11	fixed
	bullseye (security)	2.31-13+deb11u10	fixed
	bookworm	2.36-9+deb12u9	fixed
	bookworm (security)	2.36-9+deb12u7	fixed
	sid, trixie	2.40-4	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
glibc	source	(unstable)	2.7-1	unimportant

Original PHP issue only triggerable by malicious script