Medium
Security advisory
gd_gif_in.c in the GD Graphics Library (aka libgd), as used in PHP before 5.6.33, 7.0.x before 7.0.27, 7.1.x before 7.1.13, and 7.2.x before 7.2.1, has an integer signedness error that leads to an infinite loop via a crafted GIF file, as demonstrated by a call to the imagecreatefromgif or imagecreatefromstring PHP function. This is related to GetCode_ and gdImageCreateFromGifCtx.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2018-5711
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 04:23 UTC · Revision 1
Source evidence
gd_gif_in.c in the GD Graphics Library (aka libgd), as used in PHP before 5.6.33, 7.0.x before 7.0.27, 7.1.x before 7.1.13, and 7.2.x before 7.2.1, has an integer signedness error that leads to an infinite loop via a crafted GIF file, as demonstrated by a call to the imagecreatefromgif or imagecreatefromstring PHP function. This is related to GetCode_ and gdImageCreateFromGifCtx.
osv:CVE-2018-5711
Complete source record
{
"id": "db848347e4682d0a4318877a28c64bfd0395db3c923bc0101b8b981557375392",
"url": "https://osv.dev/vulnerability/CVE-2018-5711",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2018-5711",
"summary": "gd_gif_in.c in the GD Graphics Library (aka libgd), as used in PHP before 5.6.33, 7.0.x before 7.0.27, 7.1.x before 7.1.13, and 7.2.x before 7.2.1, has an integer signedness error that leads to an infinite loop via a crafted GIF file, as demonstrated by a call to the imagecreatefromgif or imagecreatefromstring PHP function. This is related to GetCode_ and gdImageCreateFromGifCtx.",
"evidence": "osv:CVE-2018-5711",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2018-5711",
"aliases": [
"CVE-2018-5711"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/php/php-src",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"last_affected": "6f21492505dd554667f70884b46802f2fb81c210"
},
{
"last_affected": "2d16947f209c40fa4cccc56833aa0807790d52b8"
},
{
"introduced": "60fffd296abce5fc071f3c173c25a2696cf683c6"
},
{
"last_affected": "532aa2d2aeb4a1f590f30d4063445473182f9a38"
},
{
"introduced": "8148cbb78841c8ec0759c0836e7f35dec799d300"
},
{
"last_affected": "8148cbb78841c8ec0759c0836e7f35dec799d300"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"last_affected": "5.6.32"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"last_affected": "7.1.12"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.0.0"
},
{
"last_affected": "7.0.26"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:php:php:7.2.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "7.2.0"
},
{
"last_affected": "7.2.0"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"7.2.0",
"php-7.2.0",
"php-7.1.12",
"php-7.1.12RC1",
"php-7.0.26",
"l",
"php-7.0.26RC1",
"php-5.6.32",
"POST_PHP7_NSAPI_REMOVAL",
"PRE_PHP7_NSAPI_REMOVAL",
"PRE_PHP7_EREG_MYSQL_REMOVALS",
"PRE_PHP7_REMOVALS",
"POST_PHP7_REMOVALS",
"POST_AST_MERGE",
"PRE_AST_MERGE",
"POST_64BIT_BRANCH_MERGE",
"PRE_64BIT_BRANCH_MERGE",
"POST_PHPNG_MERGE"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-5711.json"
}
}
],
"modified": "2026-10-24T10:30:18.142167307Z",
"provider": "osv",
"references": [
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3CZ2QADQTKRHTGB2AHD7J4QQNDLBEMM6/",
"https://www.oracle.com/security-alerts/cpuapr2020.html",
"https://access.redhat.com/errata/RHSA-2018:1296",
"https://access.redhat.com/errata/RHSA-2019:2519",
"https://lists.debian.org/debian-lts-announce/2018/01/msg00022.html",
"https://lists.debian.org/debian-lts-announce/2019/01/msg00028.html",
"https://security.gentoo.org/glsa/201903-18",
"https://usn.ubuntu.com/3755-1/",
"https://bugs.php.net/bug.php?id=75571"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*"
],
"vendor_product": "canonical:ubuntu_linux",
"extracted_events": [
{
"range": [
{
"introduced": "14.04"
},
{
"last_affected": "14.04"
},
{
"introduced": "16.04"
},
{
"last_affected": "16.04"
},
{
"introduced": "18.04"
},
{
"last_affected": "18.04"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*",
"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "7.0"
},
{
"last_affected": "7.0"
},
{
"introduced": "8.0"
},
{
"last_affected": "8.0"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2018-5711",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 429707,
"published_at": "2018-01-16T09:29:00.577+00:00"
}