diff options
Diffstat (limited to 'source/a/tar/CVE-2022-48303.patch')
-rw-r--r-- | source/a/tar/CVE-2022-48303.patch | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/source/a/tar/CVE-2022-48303.patch b/source/a/tar/CVE-2022-48303.patch new file mode 100644 index 000000000..b248fb089 --- /dev/null +++ b/source/a/tar/CVE-2022-48303.patch @@ -0,0 +1,31 @@ +From 1d530107a24d71e798727d7f0afa0833473d1074 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Matej=20Mu=C5=BEila?= <mmuzila@gmail.com> +Date: Wed, 11 Jan 2023 08:55:58 +0100 +Subject: [PATCH] Fix savannah bug #62387 + +* src/list.c (from_header): Check for the end of field after leading byte + (0x80 or 0xff) of base-256 encoded header value +--- + src/list.c | 6 ++++++ + 1 file changed, 6 insertions(+) + +diff --git a/src/list.c b/src/list.c +index 9fafc425..bf41b581 100644 +--- a/src/list.c ++++ b/src/list.c +@@ -895,6 +895,12 @@ from_header (char const *where0, size_t digs, char const *type, + << (CHAR_BIT * sizeof (uintmax_t) + - LG_256 - (LG_256 - 2))); + value = (*where++ & ((1 << (LG_256 - 2)) - 1)) - signbit; ++ if (where == lim) ++ { ++ if (type && !silent) ++ ERROR ((0, 0, _("Archive base-256 value is invalid"))); ++ return -1; ++ } + for (;;) + { + value = (value << LG_256) + (unsigned char) *where++; +-- +2.38.1 + |