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pcre2: CVE-2022-1586 Out-of-bounds read

Browse Source 
Source:  https://github.com/PCRE2Project/pcre2
MR: 118027
Type: Security Fix
Disposition: Backport from 50a51cb7e6
ChangeID: e9b448d96a7e58b34b2c4069757a6f3ca0917713
Description:

CVE-2022-1586: pcre2: Out-of-bounds read in compile_xclass_matchingpath in pcre2_jit_compile.c.

(From OE-Core rev: 7f4daf88b71f486ddc7140500d2b44181a99222f)

Signed-off-by: Hitendra Prajapati <hprajapati@mvista.com>
Signed-off-by: Jeremy A. Puhlman <jpuhlman@mvista.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Hitendra Prajapati
2022-05-23 22:20:06 -07:00
committed by Richard Purdie
parent 232b5533de
commit 475b0d3fad
2 changed files with 60 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

59
meta/recipes-support/libpcre/libpcre2/CVE-2022-1586.patch Normal file
View File

@@ -0,0 +1,59 @@
From 233c4248550d0c1d9bfee42198d5ee0855b7d413 Mon Sep 17 00:00:00 2001
From: Hitendra Prajapati <hprajapati@mvista.com>
Date: Mon, 23 May 2022 13:52:39 +0530
Subject: [PATCH] CVE-2022-1586
Upstream-Status: Backport from https://github.com/PCRE2Project/pcre2/commit/50a51cb7e67268e6ad417eb07c9de9bfea5cc55a
Signed-off-by: Hitendra Prajapati <hprajapati@mvista.com>
---
ChangeLog | 3 +++
src/pcre2_jit_compile.c | 2 +-
src/pcre2_jit_test.c | 4 ++++
3 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/ChangeLog b/ChangeLog
index 0926c29..b5d72dc 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,9 @@
Change Log for PCRE2
--------------------
+23. Fixed a unicode properrty matching issue in JIT. The character was not
+fully read in caseless matching.
+
Version 10.34 21-November-2019
------------------------------
diff --git a/src/pcre2_jit_compile.c b/src/pcre2_jit_compile.c
index f564127..5d43865 100644
--- a/src/pcre2_jit_compile.c
+++ b/src/pcre2_jit_compile.c
@@ -7119,7 +7119,7 @@ while (*cc != XCL_END)
{
SLJIT_ASSERT(*cc == XCL_PROP || *cc == XCL_NOTPROP);
cc++;
- if (*cc == PT_CLIST)
+ if (*cc == PT_CLIST && *cc == XCL_PROP)
{
other_cases = PRIV(ucd_caseless_sets) + cc[1];
while (*other_cases != NOTACHAR)
diff --git a/src/pcre2_jit_test.c b/src/pcre2_jit_test.c
index a9b3880..9df87fd 100644
--- a/src/pcre2_jit_test.c
+++ b/src/pcre2_jit_test.c
@@ -408,6 +408,10 @@ static struct regression_test_case regression_test_cases[] = {
{ MUP, A, 0, 0 | F_PROPERTY, "[\xc3\xa2-\xc3\xa6\xc3\x81-\xc3\x84\xe2\x80\xa8-\xe2\x80\xa9\xe6\x92\xad\\p{Zs}]{2,}", "\xe2\x80\xa7\xe2\x80\xa9\xe6\x92\xad \xe6\x92\xae" },
{ MUP, A, 0, 0 | F_PROPERTY, "[\\P{L&}]{2}[^\xc2\x85-\xc2\x89\\p{Ll}\\p{Lu}]{2}", "\xc3\xa9\xe6\x92\xad.a\xe6\x92\xad|\xc2\x8a#" },
{ PCRE2_UCP, 0, 0, 0 | F_PROPERTY, "[a-b\\s]{2,5}[^a]", "AB baaa" },
+ { MUP, 0, 0, 0 | F_NOMATCH, "[^\\p{Hangul}\\p{Z}]", " " },
+ { MUP, 0, 0, 0, "[\\p{Lu}\\P{Latin}]+", "c\xEA\xA4\xAE,A,b" },
+ { MUP, 0, 0, 0, "[\\x{a92e}\\p{Lu}\\P{Latin}]+", "c\xEA\xA4\xAE,A,b" },
+ { CMUP, 0, 0, 0, "[^S]\\B", "\xe2\x80\x8a" },
/* Possible empty brackets. */
{ MU, A, 0, 0, "(?:|ab||bc|a)+d", "abcxabcabd" },
--
2.25.1

1
meta/recipes-support/libpcre/libpcre2_10.34.bb
View File

@@ -12,6 +12,7 @@ LIC_FILES_CHKSUM = "file://LICENCE;md5=b1588d3bb4cb0e1f5a597d908f8c5b37"
SRC_URI = "http://downloads.yoctoproject.org/mirror/sources/pcre2-${PV}.tar.bz2 \
file://pcre-cross.patch \
file://CVE-2022-1586.patch \
"
SRC_URI[md5sum] = "d280b62ded13f9ccf2fac16ee5286366"