diff options
Diffstat (limited to 'app-arch/libarchive/files/CVE-2017-5601.patch')
| -rw-r--r-- | app-arch/libarchive/files/CVE-2017-5601.patch | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/app-arch/libarchive/files/CVE-2017-5601.patch b/app-arch/libarchive/files/CVE-2017-5601.patch new file mode 100644 index 000000000000..4ba85ff9072f --- /dev/null +++ b/app-arch/libarchive/files/CVE-2017-5601.patch @@ -0,0 +1,24 @@ +From 98dcbbf0bf4854bf987557e55e55fff7abbf3ea9 Mon Sep 17 00:00:00 2001 +From: Martin Matuska <martin@matuska.org> +Date: Thu, 19 Jan 2017 22:00:18 +0100 +Subject: [PATCH] Fail with negative lha->compsize in lha_read_file_header_1() + Fixes a heap buffer overflow reported in Secunia SA74169 + +--- + libarchive/archive_read_support_format_lha.c | 3 +++ + 1 file changed, 3 insertions(+) + +diff --git a/libarchive/archive_read_support_format_lha.c b/libarchive/archive_read_support_format_lha.c +index 52a5531..d77a7c2 100644 +--- a/libarchive/archive_read_support_format_lha.c ++++ b/libarchive/archive_read_support_format_lha.c +@@ -924,6 +924,9 @@ lha_read_file_header_1(struct archive_read *a, struct lha *lha) + /* Get a real compressed file size. */ + lha->compsize -= extdsize - 2; + ++ if (lha->compsize < 0) ++ goto invalid; /* Invalid compressed file size */ ++ + if (sum_calculated != headersum) { + archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC, + "LHa header sum error"); |