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postfix-2.5.5

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This commit is contained in:
Wietse Venema
2008-09-02 00:00:00 -05:00
committed by Viktor Dukhovni
parent 22aa53b314
commit 9eba293849
3 changed files with 15 additions and 2 deletions
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11
postfix/HISTORY
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@@ -14430,3 +14430,14 @@ Apologies for any names omitted.
symlink itself is owned by root). This change will break symlink itself is owned by root). This change will break
legitimate configurations that deliver mail to a symbolic legitimate configurations that deliver mail to a symbolic
link in a directory with less restrictive permissions. link in a directory with less restrictive permissions.
20080826
Bugfix (introduced Postfix 2.4): epoll file descriptor leak.
With Postfix >= 2.4 on Linux >= 2.6, Postfix has an epoll
file descriptor leak when it executes non-Postfix commands
in, for example, user-controlled $HOME/.forward files. A
local user can access a leaked epoll file descriptor to
implement a denial of service attack on Postfix. Data
confidentiality and integrity are not affected. File:
util/events.c.

4
postfix/src/global/mail_version.h
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@@ -20,8 +20,8 @@
* Patches change both the patchlevel and the release date. Snapshots have no * Patches change both the patchlevel and the release date. Snapshots have no
* patchlevel; they change the release date only. * patchlevel; they change the release date only.
*/ */
#define MAIL_RELEASE_DATE "20080814" #define MAIL_RELEASE_DATE "20080902"
#define MAIL_VERSION_NUMBER "2.5.4" #define MAIL_VERSION_NUMBER "2.5.5"
#ifdef SNAPSHOT #ifdef SNAPSHOT
# define MAIL_VERSION_DATE "-" MAIL_RELEASE_DATE # define MAIL_VERSION_DATE "-" MAIL_RELEASE_DATE

2
postfix/src/util/events.c
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@@ -354,6 +354,7 @@ static int event_pollfd; /* handle to file descriptor set */
#define EVENT_REG_INIT_HANDLE(er, n) do { \ #define EVENT_REG_INIT_HANDLE(er, n) do { \
er = event_pollfd = open("/dev/poll", O_RDWR); \ er = event_pollfd = open("/dev/poll", O_RDWR); \
if (event_pollfd >= 0) close_on_exec(event_pollfd, CLOSE_ON_EXEC); \
} while (0) } while (0)
#define EVENT_REG_INIT_TEXT "open /dev/poll" #define EVENT_REG_INIT_TEXT "open /dev/poll"
@@ -425,6 +426,7 @@ static int event_epollfd; /* epoll handle */
#define EVENT_REG_INIT_HANDLE(er, n) do { \ #define EVENT_REG_INIT_HANDLE(er, n) do { \
er = event_epollfd = epoll_create(n); \ er = event_epollfd = epoll_create(n); \
if (event_epollfd >= 0) close_on_exec(event_epollfd, CLOSE_ON_EXEC); \
} while (0) } while (0)
#define EVENT_REG_INIT_TEXT "epoll_create" #define EVENT_REG_INIT_TEXT "epoll_create"