diff --git a/0001-backport-fix-CVE-2022-41741-and-CVE-2022-41742.patch b/0001-backport-fix-CVE-2022-41741-and-CVE-2022-41742.patch new file mode 100644 index 0000000..7e3c37b --- /dev/null +++ b/0001-backport-fix-CVE-2022-41741-and-CVE-2022-41742.patch @@ -0,0 +1,313 @@ +From c200c8e90f7ab8b7f2138830955b31a43b3bd1b6 Mon Sep 17 00:00:00 2001 +From: Felix Kaechele +Date: Thu, 10 Nov 2022 11:45:38 -0500 +Subject: [PATCH] backport fix CVE-2022-41741 and CVE-2022-41742 + +Backported to 1.20.1 + +Signed-off-by: Felix Kaechele +--- + src/http/modules/ngx_http_mp4_module.c | 147 +++++++++++++++++++++++++ + 1 file changed, 147 insertions(+) + +diff --git a/src/http/modules/ngx_http_mp4_module.c b/src/http/modules/ngx_http_mp4_module.c +index 0e93fbd..4f4d89d 100644 +--- a/src/http/modules/ngx_http_mp4_module.c ++++ b/src/http/modules/ngx_http_mp4_module.c +@@ -1070,6 +1070,12 @@ ngx_http_mp4_read_ftyp_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) + return NGX_ERROR; + } + ++ if (mp4->ftyp_atom.buf) { ++ ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, ++ "duplicate mp4 ftyp atom in \"%s\"", mp4->file.name.data); ++ return NGX_ERROR; ++ } ++ + atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; + + ftyp_atom = ngx_palloc(mp4->request->pool, atom_size); +@@ -1128,6 +1134,12 @@ ngx_http_mp4_read_moov_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) + return NGX_DECLINED; + } + ++ if (mp4->moov_atom.buf) { ++ ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, ++ "duplicate mp4 moov atom in \"%s\"", mp4->file.name.data); ++ return NGX_ERROR; ++ } ++ + conf = ngx_http_get_module_loc_conf(mp4->request, ngx_http_mp4_module); + + if (atom_data_size > mp4->buffer_size) { +@@ -1195,6 +1207,12 @@ ngx_http_mp4_read_mdat_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) + + ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 mdat atom"); + ++ if (mp4->mdat_atom.buf) { ++ ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, ++ "duplicate mp4 mdat atom in \"%s\"", mp4->file.name.data); ++ return NGX_ERROR; ++ } ++ + data = &mp4->mdat_data_buf; + data->file = &mp4->file; + data->in_file = 1; +@@ -1321,6 +1339,12 @@ ngx_http_mp4_read_mvhd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) + + ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 mvhd atom"); + ++ if (mp4->mvhd_atom.buf) { ++ ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, ++ "duplicate mp4 mvhd atom in \"%s\"", mp4->file.name.data); ++ return NGX_ERROR; ++ } ++ + atom_header = ngx_mp4_atom_header(mp4); + mvhd_atom = (ngx_mp4_mvhd_atom_t *) atom_header; + mvhd64_atom = (ngx_mp4_mvhd64_atom_t *) atom_header; +@@ -1586,6 +1610,13 @@ ngx_http_mp4_read_tkhd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) + atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; + + trak = ngx_mp4_last_trak(mp4); ++ ++ if (trak->out[NGX_HTTP_MP4_TKHD_ATOM].buf) { ++ ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, ++ "duplicate mp4 tkhd atom in \"%s\"", mp4->file.name.data); ++ return NGX_ERROR; ++ } ++ + trak->tkhd_size = atom_size; + + ngx_mp4_set_32value(tkhd_atom->size, atom_size); +@@ -1624,6 +1655,12 @@ ngx_http_mp4_read_mdia_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) + + trak = ngx_mp4_last_trak(mp4); + ++ if (trak->out[NGX_HTTP_MP4_MDIA_ATOM].buf) { ++ ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, ++ "duplicate mp4 mdia atom in \"%s\"", mp4->file.name.data); ++ return NGX_ERROR; ++ } ++ + atom = &trak->mdia_atom_buf; + atom->temporary = 1; + atom->pos = atom_header; +@@ -1747,6 +1784,13 @@ ngx_http_mp4_read_mdhd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) + atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; + + trak = ngx_mp4_last_trak(mp4); ++ ++ if (trak->out[NGX_HTTP_MP4_MDHD_ATOM].buf) { ++ ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, ++ "duplicate mp4 mdhd atom in \"%s\"", mp4->file.name.data); ++ return NGX_ERROR; ++ } ++ + trak->mdhd_size = atom_size; + trak->timescale = timescale; + +@@ -1789,6 +1833,12 @@ ngx_http_mp4_read_hdlr_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) + + trak = ngx_mp4_last_trak(mp4); + ++ if (trak->out[NGX_HTTP_MP4_HDLR_ATOM].buf) { ++ ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, ++ "duplicate mp4 hdlr atom in \"%s\"", mp4->file.name.data); ++ return NGX_ERROR; ++ } ++ + atom = &trak->hdlr_atom_buf; + atom->temporary = 1; + atom->pos = atom_header; +@@ -1817,6 +1867,12 @@ ngx_http_mp4_read_minf_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) + + trak = ngx_mp4_last_trak(mp4); + ++ if (trak->out[NGX_HTTP_MP4_MINF_ATOM].buf) { ++ ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, ++ "duplicate mp4 minf atom in \"%s\"", mp4->file.name.data); ++ return NGX_ERROR; ++ } ++ + atom = &trak->minf_atom_buf; + atom->temporary = 1; + atom->pos = atom_header; +@@ -1860,6 +1916,15 @@ ngx_http_mp4_read_vmhd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) + + trak = ngx_mp4_last_trak(mp4); + ++ if (trak->out[NGX_HTTP_MP4_VMHD_ATOM].buf ++ || trak->out[NGX_HTTP_MP4_SMHD_ATOM].buf) ++ { ++ ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, ++ "duplicate mp4 vmhd/smhd atom in \"%s\"", ++ mp4->file.name.data); ++ return NGX_ERROR; ++ } ++ + atom = &trak->vmhd_atom_buf; + atom->temporary = 1; + atom->pos = atom_header; +@@ -1891,6 +1956,15 @@ ngx_http_mp4_read_smhd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) + + trak = ngx_mp4_last_trak(mp4); + ++ if (trak->out[NGX_HTTP_MP4_VMHD_ATOM].buf ++ || trak->out[NGX_HTTP_MP4_SMHD_ATOM].buf) ++ { ++ ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, ++ "duplicate mp4 vmhd/smhd atom in \"%s\"", ++ mp4->file.name.data); ++ return NGX_ERROR; ++ } ++ + atom = &trak->smhd_atom_buf; + atom->temporary = 1; + atom->pos = atom_header; +@@ -1922,6 +1996,12 @@ ngx_http_mp4_read_dinf_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) + + trak = ngx_mp4_last_trak(mp4); + ++ if (trak->out[NGX_HTTP_MP4_DINF_ATOM].buf) { ++ ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, ++ "duplicate mp4 dinf atom in \"%s\"", mp4->file.name.data); ++ return NGX_ERROR; ++ } ++ + atom = &trak->dinf_atom_buf; + atom->temporary = 1; + atom->pos = atom_header; +@@ -1950,6 +2030,12 @@ ngx_http_mp4_read_stbl_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) + + trak = ngx_mp4_last_trak(mp4); + ++ if (trak->out[NGX_HTTP_MP4_STBL_ATOM].buf) { ++ ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, ++ "duplicate mp4 stbl atom in \"%s\"", mp4->file.name.data); ++ return NGX_ERROR; ++ } ++ + atom = &trak->stbl_atom_buf; + atom->temporary = 1; + atom->pos = atom_header; +@@ -2018,6 +2104,12 @@ ngx_http_mp4_read_stsd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) + + trak = ngx_mp4_last_trak(mp4); + ++ if (trak->out[NGX_HTTP_MP4_STSD_ATOM].buf) { ++ ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, ++ "duplicate mp4 stsd atom in \"%s\"", mp4->file.name.data); ++ return NGX_ERROR; ++ } ++ + atom = &trak->stsd_atom_buf; + atom->temporary = 1; + atom->pos = atom_header; +@@ -2086,6 +2178,13 @@ ngx_http_mp4_read_stts_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) + atom_end = atom_table + entries * sizeof(ngx_mp4_stts_entry_t); + + trak = ngx_mp4_last_trak(mp4); ++ ++ if (trak->out[NGX_HTTP_MP4_STTS_ATOM].buf) { ++ ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, ++ "duplicate mp4 stts atom in \"%s\"", mp4->file.name.data); ++ return NGX_ERROR; ++ } ++ + trak->time_to_sample_entries = entries; + + atom = &trak->stts_atom_buf; +@@ -2291,6 +2390,13 @@ ngx_http_mp4_read_stss_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) + "sync sample entries:%uD", entries); + + trak = ngx_mp4_last_trak(mp4); ++ ++ if (trak->out[NGX_HTTP_MP4_STSS_ATOM].buf) { ++ ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, ++ "duplicate mp4 stss atom in \"%s\"", mp4->file.name.data); ++ return NGX_ERROR; ++ } ++ + trak->sync_samples_entries = entries; + + atom_table = atom_header + sizeof(ngx_http_mp4_stss_atom_t); +@@ -2489,6 +2595,13 @@ ngx_http_mp4_read_ctts_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) + "composition offset entries:%uD", entries); + + trak = ngx_mp4_last_trak(mp4); ++ ++ if (trak->out[NGX_HTTP_MP4_CTTS_ATOM].buf) { ++ ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, ++ "duplicate mp4 ctts atom in \"%s\"", mp4->file.name.data); ++ return NGX_ERROR; ++ } ++ + trak->composition_offset_entries = entries; + + atom_table = atom_header + sizeof(ngx_mp4_ctts_atom_t); +@@ -2692,6 +2805,13 @@ ngx_http_mp4_read_stsc_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) + atom_end = atom_table + entries * sizeof(ngx_mp4_stsc_entry_t); + + trak = ngx_mp4_last_trak(mp4); ++ ++ if (trak->out[NGX_HTTP_MP4_STSC_ATOM].buf) { ++ ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, ++ "duplicate mp4 stsc atom in \"%s\"", mp4->file.name.data); ++ return NGX_ERROR; ++ } ++ + trak->sample_to_chunk_entries = entries; + + atom = &trak->stsc_atom_buf; +@@ -3024,6 +3144,13 @@ ngx_http_mp4_read_stsz_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) + "sample uniform size:%uD, entries:%uD", size, entries); + + trak = ngx_mp4_last_trak(mp4); ++ ++ if (trak->out[NGX_HTTP_MP4_STSZ_ATOM].buf) { ++ ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, ++ "duplicate mp4 stsz atom in \"%s\"", mp4->file.name.data); ++ return NGX_ERROR; ++ } ++ + trak->sample_sizes_entries = entries; + + atom_table = atom_header + sizeof(ngx_mp4_stsz_atom_t); +@@ -3207,6 +3334,16 @@ ngx_http_mp4_read_stco_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) + atom_end = atom_table + entries * sizeof(uint32_t); + + trak = ngx_mp4_last_trak(mp4); ++ ++ if (trak->out[NGX_HTTP_MP4_STCO_ATOM].buf ++ || trak->out[NGX_HTTP_MP4_CO64_ATOM].buf) ++ { ++ ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, ++ "duplicate mp4 stco/co64 atom in \"%s\"", ++ mp4->file.name.data); ++ return NGX_ERROR; ++ } ++ + trak->chunks = entries; + + atom = &trak->stco_atom_buf; +@@ -3413,6 +3550,16 @@ ngx_http_mp4_read_co64_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) + atom_end = atom_table + entries * sizeof(uint64_t); + + trak = ngx_mp4_last_trak(mp4); ++ ++ if (trak->out[NGX_HTTP_MP4_STCO_ATOM].buf ++ || trak->out[NGX_HTTP_MP4_CO64_ATOM].buf) ++ { ++ ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, ++ "duplicate mp4 stco/co64 atom in \"%s\"", ++ mp4->file.name.data); ++ return NGX_ERROR; ++ } ++ + trak->chunks = entries; + + atom = &trak->co64_atom_buf; +-- +2.38.1 + diff --git a/nginx.spec b/nginx.spec index 3b1621b..62c05da 100644 --- a/nginx.spec +++ b/nginx.spec @@ -41,7 +41,7 @@ Name: nginx Epoch: 1 Version: 1.20.1 -Release: 9%{?dist} +Release: 10%{?dist} Summary: A high performance web server and reverse proxy server # BSD License (two clause) @@ -79,6 +79,9 @@ Patch1: 0002-fix-PIDFile-handling.patch # Fix for CVE-2021-3618: ALPACA: Application Layer Protocol Confusion - Analyzing and Mitigating Cracks in TLS Authentication Patch2: http://hg.nginx.org/nginx/raw-rev/ec1071830799 +# Fix for CVE-2022-41741 and CVE-2022-41742: Memory corruption/disclosure in the ngx_http_mp4_module +Patch3: 0001-backport-fix-CVE-2022-41741-and-CVE-2022-41742.patch + BuildRequires: make BuildRequires: gcc BuildRequires: gnupg2 @@ -578,6 +581,9 @@ fi %changelog +* Thu Nov 10 2022 Felix Kaechele - 1:1.20.1-10 +- backport fix for CVE-2022-41741 and CVE-2022-41742 + * Mon Oct 18 2021 Felix Kaechele - 1:1.20.1-9 - fix installation of nginxmods.attr for EPEL 7