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import zsh-5.5.1-9.el8

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CentOS Sources 2022-05-10 03:20:35 -04:00 committed by Stepan Oksanichenko
parent 257263729d
commit 3039f911f4
2 changed files with 54 additions and 3 deletions
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45
SOURCES/0005-zsh-5.5.1-CVE-2021-45444.patch Normal file
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@ -0,0 +1,45 @@
From 9ce87af4ced4e21258e6003f1fb65b05ca5a7d14 Mon Sep 17 00:00:00 2001
From: Oliver Kiddle <opk@zsh.org>
Date: Wed, 15 Dec 2021 01:56:40 +0100
Subject: [PATCH] security/41: Don't perform PROMPT_SUBST evaluation on %F/%K
arguments
Mitigates CVE-2021-45444
Upstream-commit: c187154f47697cdbf822c2f9d714d570ed4a0fd1
Signed-off-by: Kamil Dudka <kdudka@redhat.com>
---
Src/prompt.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/Src/prompt.c b/Src/prompt.c
index 95da525..1368f8e 100644
--- a/Src/prompt.c
+++ b/Src/prompt.c
@@ -244,6 +244,12 @@ parsecolorchar(int arg, int is_fg)
bv->fm += 2; /* skip over F{ */
if ((ep = strchr(bv->fm, '}'))) {
char oc = *ep, *col, *coll;
+ int ops = opts[PROMPTSUBST], opb = opts[PROMPTBANG];
+ int opp = opts[PROMPTPERCENT];
+
+ opts[PROMPTPERCENT] = 1;
+ opts[PROMPTSUBST] = opts[PROMPTBANG] = 0;
+
*ep = '\0';
/* expand the contents of the argument so you can use
* %v for example */
@@ -252,6 +258,10 @@ parsecolorchar(int arg, int is_fg)
arg = match_colour((const char **)&coll, is_fg, 0);
free(col);
bv->fm = ep;
+
+ opts[PROMPTSUBST] = ops;
+ opts[PROMPTBANG] = opb;
+ opts[PROMPTPERCENT] = opp;
} else {
arg = match_colour((const char **)&bv->fm, is_fg, 0);
if (*bv->fm != '}')
--
2.34.1

12
SPECS/zsh.spec
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@ -1,7 +1,7 @@
Summary: Powerful interactive shell
Name: zsh
Version: 5.5.1
Release: 6%{?dist}.2
Release: 9%{?dist}
License: MIT
URL: http://zsh.sourceforge.net/
Source0: https://downloads.sourceforge.net/%{name}/%{name}-%{version}.tar.xz
@ -24,6 +24,9 @@ Patch3: 0003-zsh-5.5.1-parse-error-exit-status.patch
# drop privileges securely when unsetting PRIVILEGED option (CVE-2019-20044)
Patch4: 0004-zsh-5.5.1-CVE-2019-20044.patch
# do not perform PROMPT_SUBST evaluation on %F/%K arguments (CVE-2021-45444)
Patch5: 0005-zsh-5.5.1-CVE-2021-45444.patch
BuildRequires: autoconf
BuildRequires: coreutils
BuildRequires: gawk
@ -179,10 +182,13 @@ fi
%doc Doc/*.html
%changelog
* Tue Mar 03 2020 Kamil Dudka <kdudka@redhat.com> - 5.5.1-6.el8_1.2
* Tue Feb 22 2022 Kamil Dudka <kdudka@redhat.com> - 5.5.1-9
- do not perform PROMPT_SUBST evaluation on %F/%K arguments (CVE-2021-45444)
* Tue Mar 03 2020 Kamil Dudka <kdudka@redhat.com> - 5.5.1-8
- improve printing of error messages introduced by the fix of CVE-2019-20044
* Mon Feb 24 2020 Kamil Dudka <kdudka@redhat.com> - 5.5.1-6.el8_1.1
* Mon Feb 24 2020 Kamil Dudka <kdudka@redhat.com> - 5.5.1-7
- drop privileges securely when unsetting PRIVILEGED option (CVE-2019-20044)
* Mon Dec 17 2018 Kamil Dudka <kdudka@redhat.com> - 5.5.1-6