Medium
Security advisory
GNOME gdk-pixbuf (aka GdkPixbuf) before 2.42.2 allows a denial of service (infinite loop) in lzw.c in the function write_indexes. if c->self_code equals 10, self->code_table[10].extends will assign the value 11 to c. The next execution in the loop will assign self->code_table[11].extends to c, which will give the value of 10. This will make the loop run infinitely. This bug can, for example, be triggered by calling this function with a GIF image with LZW compression that is crafted in a special way.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-29385
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 08:46 UTC · Revision 1
Source evidence
GNOME gdk-pixbuf (aka GdkPixbuf) before 2.42.2 allows a denial of service (infinite loop) in lzw.c in the function write_indexes. if c->self_code equals 10, self->code_table[10].extends will assign the value 11 to c. The next execution in the loop will assign self->code_table[11].extends to c, which will give the value of 10. This will make the loop run infinitely. This bug can, for example, be triggered by calling this function with a GIF image with LZW compression that is crafted in a special way.
osv:CVE-2020-29385
Complete source record
{
"id": "a9e55374f7fec8dfb1d35f0dcc3678cdf44c5f6e97955f60f3ff8a9149e6d30c",
"url": "https://osv.dev/vulnerability/CVE-2020-29385",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-29385",
"summary": "GNOME gdk-pixbuf (aka GdkPixbuf) before 2.42.2 allows a denial of service (infinite loop) in lzw.c in the function write_indexes. if c->self_code equals 10, self->code_table[10].extends will assign the value 11 to c. The next execution in the loop will assign self->code_table[11].extends to c, which will give the value of 10. This will make the loop run infinitely. This bug can, for example, be triggered by calling this function with a GIF image with LZW compression that is crafted in a special way.",
"evidence": "osv:CVE-2020-29385",
"products": [],
"severity": "medium",
"structured": {
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"aliases": [
"CVE-2020-29385"
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"metrics": [
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}
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"modified": "2026-10-24T10:50:06.101284558Z",
"provider": "osv",
"references": [
"https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/blob/master/NEWS",
"https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/issues/164",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B5H3GNVWMZTYZR3JBYCK57PF7PFMQBNP/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BGZVCTH5O7WBJLYXZ2UOKLYNIFPVR55D/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EANWYODLOJDFLMBH6WEKJJMQ5PKLEWML/",
"https://security.gentoo.org/glsa/202012-15",
"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=977166",
"https://ubuntu.com/security/CVE-2020-29385"
],
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"related_cves": [
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},
"source_id": "core-osv",
"document_id": 441953,
"published_at": "2020-12-26T02:15:12.807+00:00"
}