Firefox does not execute:imageArea.innerHTML = "<image alt='&#x" +parts[1]+";' src='/images/dictionary/"+parts[1]+".jpg'/>";I .jpg is replaced by gif, if does fine. Setting httpd_read_user_content=1(SELinux suggested) makes the area totally black black.

RESOLVED INCOMPLETE

Status

()

Firefox
File Handling
RESOLVED INCOMPLETE
7 years ago
4 years ago

People

(Reporter: Yau Lui, Unassigned, NeedInfo)

Tracking

Firefox Tracking Flags

(Not tracked)

Details

(Reporter)

Description

7 years ago
User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.13) Gecko/20110103 Fedora/3.6.13-1.fc14 Firefox/3.6.13
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.13) Gecko/20110103 Fedora/3.6.13-1.fc14 Firefox/3.6.13

Firefox does not execute:imageArea.innerHTML = "<image alt='&#x" +parts[1]+";' src='/images/dictionary/"+parts[1]+".jpg'/>";I .jpg is replaced by gif, if does fine. Setting httpd_read_user_content=1(SELinux suggested) makes the area totally black

From SELinux:
SELinux is preventing /usr/sbin/httpd from 'read' accesses on the file /var/www/html/images/dictionary/9F9F.jpg.

*****  Plugin catchall_boolean (89.3 confidence) suggests  *******************

If you want to allow httpd to read user content
Then you must tell SELinux about this by enabling the 'httpd_read_user_content' boolean.
Do
setsebool -P httpd_read_user_content 1

*****  Plugin catchall (11.6 confidence) suggests  ***************************

If you believe that httpd should be allowed read access on the 9F9F.jpg file by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
Do
allow this access for now by executing:
# grep /usr/sbin/httpd /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:httpd_t:s0
Target Context                unconfined_u:object_r:user_home_t:s0
Target Objects                /var/www/html/images/dictionary/9F9F.jpg [ file ]
Source                        httpd
Source Path                   /usr/sbin/httpd
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           httpd-2.2.17-1.fc14
Target RPM Packages           
Policy RPM                    selinux-policy-3.9.7-19.fc14
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux fmiwinux 2.6.35.10-74.fc14.i686.PAE #1 SMP
                              Thu Dec 23 16:10:47 UTC 2010 i686 i686
Alert Count                   3
First Seen                    Fri 07 Jan 2011 04:12:48 PM EST
Last Seen                     Sat 08 Jan 2011 10:02:45 AM EST
Local ID                      fa07769e-863c-4c5a-89ba-5371ddb28092

Raw Audit Messages
type=AVC msg=audit(1294498965.285:35): avc:  denied  { read } for  pid=1932 comm="httpd" name="9F9F.jpg" dev=dm-0 ino=1180501 scontext=system_u:system_r:httpd_t:s0 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file

httpd,httpd_t,user_home_t,file,read
type=SYSCALL msg=audit(1294498965.285:35): arch=i386 syscall=open success=no exit=EACCES a0=b5d0aaa0 a1=88000 a2=0 a3=1021 items=0 ppid=1904 pid=1932 auid=4294967295 uid=48 gid=489 euid=48 suid=48 fsuid=48 egid=489 sgid=489 fsgid=489 tty=(none) ses=4294967295 comm=httpd exe=/usr/sbin/httpd subj=system_u:system_r:httpd_t:s0 key=(null)
httpd,httpd_t,user_home_t,file,read

#============= httpd_t ==============
#!!!! This avc can be allowed using the boolean 'httpd_read_user_content'

allow httpd_t user_home_t:file read;



Reproducible: Always

Steps to Reproduce:
1.In the Summary, parts[1] is returned from php in an Ajax environment using utf-8 encoding. this parts[1] is used as an image file name without extention. 
2.Entention .gif works fine but not so for jpg.
3.



SELinux is preventing /usr/sbin/httpd from 'read' accesses on the file /var/www/html/images/dictionary/9F9F.jpg.

*****  Plugin catchall_boolean (89.3 confidence) suggests  *******************

If you want to allow httpd to read user content
Then you must tell SELinux about this by enabling the 'httpd_read_user_content' boolean.
Do
setsebool -P httpd_read_user_content 1

*****  Plugin catchall (11.6 confidence) suggests  ***************************

If you believe that httpd should be allowed read access on the 9F9F.jpg file by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
Do
allow this access for now by executing:
# grep /usr/sbin/httpd /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:httpd_t:s0
Target Context                unconfined_u:object_r:user_home_t:s0
Target Objects                /var/www/html/images/dictionary/9F9F.jpg [ file ]
Source                        httpd
Source Path                   /usr/sbin/httpd
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           httpd-2.2.17-1.fc14
Target RPM Packages           
Policy RPM                    selinux-policy-3.9.7-19.fc14
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux fmiwinux 2.6.35.10-74.fc14.i686.PAE #1 SMP
                              Thu Dec 23 16:10:47 UTC 2010 i686 i686
Alert Count                   3
First Seen                    Fri 07 Jan 2011 04:12:48 PM EST
Last Seen                     Sat 08 Jan 2011 10:02:45 AM EST
Local ID                      fa07769e-863c-4c5a-89ba-5371ddb28092

Raw Audit Messages
type=AVC msg=audit(1294498965.285:35): avc:  denied  { read } for  pid=1932 comm="httpd" name="9F9F.jpg" dev=dm-0 ino=1180501 scontext=system_u:system_r:httpd_t:s0 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file

httpd,httpd_t,user_home_t,file,read
type=SYSCALL msg=audit(1294498965.285:35): arch=i386 syscall=open success=no exit=EACCES a0=b5d0aaa0 a1=88000 a2=0 a3=1021 items=0 ppid=1904 pid=1932 auid=4294967295 uid=48 gid=489 euid=48 suid=48 fsuid=48 egid=489 sgid=489 fsgid=489 tty=(none) ses=4294967295 comm=httpd exe=/usr/sbin/httpd subj=system_u:system_r:httpd_t:s0 key=(null)
httpd,httpd_t,user_home_t,file,read

#============= httpd_t ==============
#!!!! This avc can be allowed using the boolean 'httpd_read_user_content'

allow httpd_t user_home_t:file read;
Yau, are you still seeing this issue with a latest Firefox version?
Flags: needinfo?(yaului)
Incomplete due to lack of response. Please reopen the bug if you still see this issue.
Status: UNCONFIRMED → RESOLVED
Last Resolved: 4 years ago
Resolution: --- → INCOMPLETE
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