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CVE-2011-1749 (GCVE-0-2011-1749)
Vulnerability from cvelistv5 – Published: 2014-02-26 15:00 – Updated: 2024-08-06 22:37- n/a
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RHSA-2011:1534
Vulnerability from csaf_redhat - Published: 2011-12-05 19:54 - Updated: 2025-11-21 17:39The nfs_addmntent function in support/nfs/nfs_mntent.c in the mount.nsf tool in nfs-utils before 1.2.4 attempts to append to the /etc/mtab file without first checking whether resource limits would interfere, which allows local users to corrupt this file via a process with a small RLIMIT_FSIZE value, a related issue to CVE-2011-1089.
The host_reliable_addrinfo function in support/export/hostname.c in nfs-utils before 1.2.4 does not properly use DNS to verify access to NFS exports, which allows remote attackers to mount filesystems by establishing crafted DNS A and PTR records.
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"title": "Vulnerability description"
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"text": "nfs-utils: mount.nfs fails to anticipate RLIMIT_FSIZE",
"title": "Vulnerability summary"
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{
"category": "other",
"text": "This issue did not affect the versions of nfs-utils as shipped with Red Hat Enterprise Linux 4 as it did not include include mount.nfs. It was addressed in Red Hat Enterprise Linux 5 and 6 via RHSA-2012:0310 and RHSA-2011:1534 respectively.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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{
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RHSA-2012:0310
Vulnerability from csaf_redhat - Published: 2012-02-21 02:20 - Updated: 2025-11-21 17:40The nfs_addmntent function in support/nfs/nfs_mntent.c in the mount.nsf tool in nfs-utils before 1.2.4 attempts to append to the /etc/mtab file without first checking whether resource limits would interfere, which allows local users to corrupt this file via a process with a small RLIMIT_FSIZE value, a related issue to CVE-2011-1089.
| URL | Category | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
{
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"namespace": "https://access.redhat.com/security/updates/classification/",
"text": "Low"
},
"category": "csaf_security_advisory",
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"distribution": {
"text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
"tlp": {
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"text": "The nfs-utils package provides a daemon for the kernel Network File System\n(NFS) server, and related tools such as the mount.nfs, umount.nfs, and\nshowmount programs.\n\nIt was found that the mount.nfs tool did not handle certain errors\ncorrectly when updating the mtab (mounted file systems table) file. A\nlocal attacker could use this flaw to corrupt the mtab file.\n(CVE-2011-1749)\n\nThis update also fixes the following bugs:\n\n* The nfs service failed to start if the NFSv1, NFSv2, and NFSv4 support\nwas disabled (the MOUNTD_NFS_V1=\"no\", MOUNTD_NFS_V2=\"no\" MOUNTD_NFS_V3=\"no\"\nlines in /etc/sysconfig/nfs were uncommented) because the mountd daemon\nfailed to handle the settings correctly. With this update, the underlying\ncode has been modified and the nfs service starts successfully in the\ndescribed scenario. (BZ#529588)\n\n* When a user\u0027s Kerberos ticket expired, the \"sh rpc.gssd\" messages flooded\nthe /var/log/messages file. With this update, the excessive logging has\nbeen suppressed. (BZ#593097)\n\n* The crash simulation (SM_SIMU_CRASH) of the rpc.statd service had a\nvulnerability that could be detected by ISS (Internet Security Scanner). As\na result, the rpc.statd service terminated unexpectedly with the following\nerror after an ISS scan:\n\n rpc.statd[xxxx]: recv_rply: can\u0027t decode RPC message!\n rpc.statd[xxxx]: *** SIMULATING CRASH! ***\n rpc.statd[xxxx]: unable to register (statd, 1, udp).\n\nHowever, the rpc.statd service ignored SM_SIMU_CRASH. This update removes\nthe simulation crash support from the service and the problem no longer\noccurs. (BZ#600497)\n\n* The nfs-utils init scripts returned incorrect status codes in the\nfollowing cases: if the rpcgssd and rpcsvcgssd daemon were not configured,\nwere provided an unknown argument, their function call failed, if a program\nwas no longer running and a /var/lock/subsys/$SERVICE file existed, if\nstarting a service under an unprivileged user, if a program was no longer\nrunning and its pid file still existed in the /var/run/ directory. With\nthis update, the correct codes are returned in these scenarios. (BZ#710020)\n\n* The \"nfsstat -m\" command did not display NFSv4 mounts. With this update,\nthe underlying code has been modified and the command returns the list of\nall mounts, including any NFSv4 mounts, as expected. (BZ#712438)\n\n* Previously, the nfs manual pages described the fsc mount option; however,\nthis option is not supported. This update removes the option description\nfrom the manual pages. (BZ#715523)\n\n* The nfs-utils preinstall scriptlet failed to change the default group ID\nfor the nfsnobody user to 65534. This update modifies the preinstall\nscriptlet and the default group ID is changed to 65534 after nfs-utils\nupgrade as expected. (BZ#729603)\n\n* The mount.nfs command with the \"-o retry\" option did not try to mount for\nthe time specified in the \"retry=X\" configuration option. This occurred due\nto incorrect error handling by the command. With this update, the\nunderlying code has been fixed and the \"-o retry\" option works as expected.\n(BZ#736677)\n\nIn addition, this update adds the following enhancement:\n\n* The noresvport option, which allows NFS clients to use insecure ports\n(ports above 1023), has been added to the NFS server configuration options.\n(BZ#513094)\n\nAll nfs-utils users are advised to upgrade to this updated package, which\nresolves these issues and adds this enhancement. After installing this\nupdate, the nfs service will be restarted automatically.",
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"text": "697975"
}
],
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"text": "The nfs_addmntent function in support/nfs/nfs_mntent.c in the mount.nsf tool in nfs-utils before 1.2.4 attempts to append to the /etc/mtab file without first checking whether resource limits would interfere, which allows local users to corrupt this file via a process with a small RLIMIT_FSIZE value, a related issue to CVE-2011-1089.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "nfs-utils: mount.nfs fails to anticipate RLIMIT_FSIZE",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue did not affect the versions of nfs-utils as shipped with Red Hat Enterprise Linux 4 as it did not include include mount.nfs. It was addressed in Red Hat Enterprise Linux 5 and 6 via RHSA-2012:0310 and RHSA-2011:1534 respectively.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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RHSA-2012_0310
Vulnerability from csaf_redhat - Published: 2012-02-21 02:20 - Updated: 2024-11-22 04:37The nfs_addmntent function in support/nfs/nfs_mntent.c in the mount.nsf tool in nfs-utils before 1.2.4 attempts to append to the /etc/mtab file without first checking whether resource limits would interfere, which allows local users to corrupt this file via a process with a small RLIMIT_FSIZE value, a related issue to CVE-2011-1089.
| URL | Category | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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"text": "The nfs-utils package provides a daemon for the kernel Network File System\n(NFS) server, and related tools such as the mount.nfs, umount.nfs, and\nshowmount programs.\n\nIt was found that the mount.nfs tool did not handle certain errors\ncorrectly when updating the mtab (mounted file systems table) file. A\nlocal attacker could use this flaw to corrupt the mtab file.\n(CVE-2011-1749)\n\nThis update also fixes the following bugs:\n\n* The nfs service failed to start if the NFSv1, NFSv2, and NFSv4 support\nwas disabled (the MOUNTD_NFS_V1=\"no\", MOUNTD_NFS_V2=\"no\" MOUNTD_NFS_V3=\"no\"\nlines in /etc/sysconfig/nfs were uncommented) because the mountd daemon\nfailed to handle the settings correctly. With this update, the underlying\ncode has been modified and the nfs service starts successfully in the\ndescribed scenario. (BZ#529588)\n\n* When a user\u0027s Kerberos ticket expired, the \"sh rpc.gssd\" messages flooded\nthe /var/log/messages file. With this update, the excessive logging has\nbeen suppressed. (BZ#593097)\n\n* The crash simulation (SM_SIMU_CRASH) of the rpc.statd service had a\nvulnerability that could be detected by ISS (Internet Security Scanner). As\na result, the rpc.statd service terminated unexpectedly with the following\nerror after an ISS scan:\n\n rpc.statd[xxxx]: recv_rply: can\u0027t decode RPC message!\n rpc.statd[xxxx]: *** SIMULATING CRASH! ***\n rpc.statd[xxxx]: unable to register (statd, 1, udp).\n\nHowever, the rpc.statd service ignored SM_SIMU_CRASH. This update removes\nthe simulation crash support from the service and the problem no longer\noccurs. (BZ#600497)\n\n* The nfs-utils init scripts returned incorrect status codes in the\nfollowing cases: if the rpcgssd and rpcsvcgssd daemon were not configured,\nwere provided an unknown argument, their function call failed, if a program\nwas no longer running and a /var/lock/subsys/$SERVICE file existed, if\nstarting a service under an unprivileged user, if a program was no longer\nrunning and its pid file still existed in the /var/run/ directory. With\nthis update, the correct codes are returned in these scenarios. (BZ#710020)\n\n* The \"nfsstat -m\" command did not display NFSv4 mounts. With this update,\nthe underlying code has been modified and the command returns the list of\nall mounts, including any NFSv4 mounts, as expected. (BZ#712438)\n\n* Previously, the nfs manual pages described the fsc mount option; however,\nthis option is not supported. This update removes the option description\nfrom the manual pages. (BZ#715523)\n\n* The nfs-utils preinstall scriptlet failed to change the default group ID\nfor the nfsnobody user to 65534. This update modifies the preinstall\nscriptlet and the default group ID is changed to 65534 after nfs-utils\nupgrade as expected. (BZ#729603)\n\n* The mount.nfs command with the \"-o retry\" option did not try to mount for\nthe time specified in the \"retry=X\" configuration option. This occurred due\nto incorrect error handling by the command. With this update, the\nunderlying code has been fixed and the \"-o retry\" option works as expected.\n(BZ#736677)\n\nIn addition, this update adds the following enhancement:\n\n* The noresvport option, which allows NFS clients to use insecure ports\n(ports above 1023), has been added to the NFS server configuration options.\n(BZ#513094)\n\nAll nfs-utils users are advised to upgrade to this updated package, which\nresolves these issues and adds this enhancement. After installing this\nupdate, the nfs service will be restarted automatically.",
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RHSA-2011_1534
Vulnerability from csaf_redhat - Published: 2011-12-05 19:54 - Updated: 2024-11-22 04:37The nfs_addmntent function in support/nfs/nfs_mntent.c in the mount.nsf tool in nfs-utils before 1.2.4 attempts to append to the /etc/mtab file without first checking whether resource limits would interfere, which allows local users to corrupt this file via a process with a small RLIMIT_FSIZE value, a related issue to CVE-2011-1089.
The host_reliable_addrinfo function in support/export/hostname.c in nfs-utils before 1.2.4 does not properly use DNS to verify access to NFS exports, which allows remote attackers to mount filesystems by establishing crafted DNS A and PTR records.
| URL | Category | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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"text": "nfs-utils: mount.nfs fails to anticipate RLIMIT_FSIZE",
"title": "Vulnerability summary"
},
{
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"text": "This issue did not affect the versions of nfs-utils as shipped with Red Hat Enterprise Linux 4 as it did not include include mount.nfs. It was addressed in Red Hat Enterprise Linux 5 and 6 via RHSA-2012:0310 and RHSA-2011:1534 respectively.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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GSD-2011-1749
Vulnerability from gsd - Updated: 2023-12-13 01:19{
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GHSA-C72P-CWVX-7724
Vulnerability from github – Published: 2022-05-17 04:49 – Updated: 2022-05-17 04:49The nfs_addmntent function in support/nfs/nfs_mntent.c in the mount.nsf tool in nfs-utils before 1.2.4 attempts to append to the /etc/mtab file without first checking whether resource limits would interfere, which allows local users to corrupt this file via a process with a small RLIMIT_FSIZE value, a related issue to CVE-2011-1089.
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FKIE_CVE-2011-1749
Vulnerability from fkie_nvd - Published: 2014-02-26 15:55 - Updated: 2025-04-12 10:46| URL | Tags | ||
|---|---|---|---|
| secalert@redhat.com | http://rhn.redhat.com/errata/RHSA-2011-1534.html | ||
| secalert@redhat.com | http://rhn.redhat.com/errata/RHSA-2012-0310.html | Patch | |
| secalert@redhat.com | http://sourceforge.net/projects/nfs/files/nfs-utils/1.2.4/Changelog-nfs-utils-1.2.4/download | Patch | |
| secalert@redhat.com | http://www.openwall.com/lists/oss-security/2011/04/25/5 | ||
| secalert@redhat.com | https://bugzilla.redhat.com/show_bug.cgi?id=697975 | ||
| af854a3a-2127-422b-91ae-364da2661108 | http://rhn.redhat.com/errata/RHSA-2011-1534.html | ||
| af854a3a-2127-422b-91ae-364da2661108 | http://rhn.redhat.com/errata/RHSA-2012-0310.html | Patch | |
| af854a3a-2127-422b-91ae-364da2661108 | http://sourceforge.net/projects/nfs/files/nfs-utils/1.2.4/Changelog-nfs-utils-1.2.4/download | Patch | |
| af854a3a-2127-422b-91ae-364da2661108 | http://www.openwall.com/lists/oss-security/2011/04/25/5 | ||
| af854a3a-2127-422b-91ae-364da2661108 | https://bugzilla.redhat.com/show_bug.cgi?id=697975 |
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.