Date: Sat, 28 Jul 2018 01:00:00 +0000 (UTC) From: Conrad Meyer <cem@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r336801 - head/contrib/libarchive/libarchive Message-ID: <201807280100.w6S100Gp016888@repo.freebsd.org>
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Author: cem Date: Sat Jul 28 00:59:59 2018 New Revision: 336801 URL: https://svnweb.freebsd.org/changeset/base/336801 Log: MFV r336800: libarchive: Cherry-pick upstream 2c8c83b9 Relevant vendor changes: Fix issue #948: out-of-bounds read in lha_read_data_none() admbugs: 877 MFC after: 3 days Security: CVE-2017-14503 Modified: head/contrib/libarchive/libarchive/archive_read_support_format_lha.c Directory Properties: head/contrib/libarchive/ (props changed) Modified: head/contrib/libarchive/libarchive/archive_read_support_format_lha.c ============================================================================== --- head/contrib/libarchive/libarchive/archive_read_support_format_lha.c Sat Jul 28 00:55:57 2018 (r336800) +++ head/contrib/libarchive/libarchive/archive_read_support_format_lha.c Sat Jul 28 00:59:59 2018 (r336801) @@ -701,6 +701,12 @@ archive_read_format_lha_read_header(struct archive_rea * Prepare variables used to read a file content. */ lha->entry_bytes_remaining = lha->compsize; + if (lha->entry_bytes_remaining < 0) { + archive_set_error(&a->archive, + ARCHIVE_ERRNO_FILE_FORMAT, + "Invalid LHa entry size"); + return (ARCHIVE_FATAL); + } lha->entry_offset = 0; lha->entry_crc_calculated = 0;
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