Pick fix for CVE-2023-4156 from ubuntu 20.04 A heap out-of-bounds read flaw was found in builtin.c in the gawk package. This issue may lead to a crash and could be used to read sensitive information.
https://nvd.nist.gov/vuln/detail/CVE-2023-4156 https://packages.ubuntu.com/source/focal/gawk gawk_5.0.1+dfsg-1ubuntu0.1.debian.tar.xz / 12.9 kB / 12d878acc04cd6328b793455547c870f Signed-off-by: Marek Vasut <[email protected]> --- .../gawk/gawk/CVE-2023-4156.patch | 26 +++++++++++++++++++ meta/recipes-extended/gawk/gawk_5.0.1.bb | 1 + 2 files changed, 27 insertions(+) create mode 100644 meta/recipes-extended/gawk/gawk/CVE-2023-4156.patch diff --git a/meta/recipes-extended/gawk/gawk/CVE-2023-4156.patch b/meta/recipes-extended/gawk/gawk/CVE-2023-4156.patch new file mode 100644 index 0000000000..ecfd974af0 --- /dev/null +++ b/meta/recipes-extended/gawk/gawk/CVE-2023-4156.patch @@ -0,0 +1,26 @@ +From e709eb829448ce040087a3fc5481db6bfcaae212 Mon Sep 17 00:00:00 2001 +From: "Arnold D. Robbins" <[email protected]> +Date: Wed, 3 Aug 2022 13:00:54 +0300 +Subject: [PATCH] Smal bug fix in builtin.c. + +CVE: CVE-2023-4156 +Signed-off-by: Marek Vasut <[email protected]> +--- + ChangeLog | 6 ++++++ + builtin.c | 5 ++++- + 2 files changed, 10 insertions(+), 1 deletion(-) + +--- gawk-5.1.0.orig/builtin.c ++++ gawk-5.1.0/builtin.c +@@ -957,7 +957,10 @@ check_pos: + s1++; + n0--; + } +- if (val >= num_args) { ++ // val could be less than zero if someone provides a field width ++ // so large that it causes integer overflow. Mainly fuzzers do this, ++ // but let's try to be good anyway. ++ if (val < 0 || val >= num_args) { + toofew = true; + break; + } diff --git a/meta/recipes-extended/gawk/gawk_5.0.1.bb b/meta/recipes-extended/gawk/gawk_5.0.1.bb index 1b29ec3113..7ca4cb77e4 100644 --- a/meta/recipes-extended/gawk/gawk_5.0.1.bb +++ b/meta/recipes-extended/gawk/gawk_5.0.1.bb @@ -17,6 +17,7 @@ PACKAGECONFIG[mpfr] = "--with-mpfr,--without-mpfr, mpfr" SRC_URI = "${GNU_MIRROR}/gawk/gawk-${PV}.tar.gz \ file://remove-sensitive-tests.patch \ + file://CVE-2023-4156.patch \ file://run-ptest \ " -- 2.40.1
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