diff options
author | V3n3RiX <venerix@koprulu.sector> | 2022-02-02 01:39:05 +0000 |
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committer | V3n3RiX <venerix@koprulu.sector> | 2022-02-02 01:39:05 +0000 |
commit | fcc5224904648a8e6eb528d7603154160a20022f (patch) | |
tree | 3bfce096b38a9cea8eed13fc70c1526c456e9abd /sys-auth/polkit/files/polkit-0.120-CVE-2021-4034.patch | |
parent | 2fd57282f0262ca084e05b0f2c63fbada395d02b (diff) |
gentoo resync : 02.02.2022
Diffstat (limited to 'sys-auth/polkit/files/polkit-0.120-CVE-2021-4034.patch')
-rw-r--r-- | sys-auth/polkit/files/polkit-0.120-CVE-2021-4034.patch | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/sys-auth/polkit/files/polkit-0.120-CVE-2021-4034.patch b/sys-auth/polkit/files/polkit-0.120-CVE-2021-4034.patch new file mode 100644 index 000000000000..22bb71d14204 --- /dev/null +++ b/sys-auth/polkit/files/polkit-0.120-CVE-2021-4034.patch @@ -0,0 +1,72 @@ +https://www.qualys.com/2022/01/25/cve-2021-4034/pwnkit.txt +https://bugs.gentoo.org/832057 +https://gitlab.freedesktop.org/polkit/polkit/-/commit/a2bf5c9c83b6ae46cbd5c779d3055bff81ded683.patch + +From a2bf5c9c83b6ae46cbd5c779d3055bff81ded683 Mon Sep 17 00:00:00 2001 +From: Jan Rybar <jrybar@redhat.com> +Date: Tue, 25 Jan 2022 17:21:46 +0000 +Subject: [PATCH] pkexec: local privilege escalation (CVE-2021-4034) + +--- a/src/programs/pkcheck.c ++++ b/src/programs/pkcheck.c +@@ -363,6 +363,11 @@ main (int argc, char *argv[]) + local_agent_handle = NULL; + ret = 126; + ++ if (argc < 1) ++ { ++ exit(126); ++ } ++ + /* Disable remote file access from GIO. */ + setenv ("GIO_USE_VFS", "local", 1); + +--- a/src/programs/pkexec.c ++++ b/src/programs/pkexec.c +@@ -488,6 +488,15 @@ main (int argc, char *argv[]) + pid_t pid_of_caller; + gpointer local_agent_handle; + ++ ++ /* ++ * If 'pkexec' is called THIS wrong, someone's probably evil-doing. Don't be nice, just bail out. ++ */ ++ if (argc<1) ++ { ++ exit(127); ++ } ++ + ret = 127; + authority = NULL; + subject = NULL; +@@ -614,10 +623,10 @@ main (int argc, char *argv[]) + + path = g_strdup (pwstruct.pw_shell); + if (!path) +- { ++ { + g_printerr ("No shell configured or error retrieving pw_shell\n"); + goto out; +- } ++ } + /* If you change this, be sure to change the if (!command_line) + case below too */ + command_line = g_strdup (path); +@@ -636,7 +645,15 @@ main (int argc, char *argv[]) + goto out; + } + g_free (path); +- argv[n] = path = s; ++ path = s; ++ ++ /* argc<2 and pkexec runs just shell, argv is guaranteed to be null-terminated. ++ * /-less shell shouldn't happen, but let's be defensive and don't write to null-termination ++ */ ++ if (argv[n] != NULL) ++ { ++ argv[n] = path; ++ } + } + if (access (path, F_OK) != 0) + { +GitLab |