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Rewterz Threat Advisory – CVE 2019-11707 – Mozilla Firefox Vulnerability Exploited In the wild
June 19, 2019
Rewterz Threat Alert – Multiple Phishing Campaigns – Collective Indicators of Compromise
June 19, 2019

Rewterz Threat Advisory – Oracle Linux kernel-uek Multiple Vulnerabilities

June 19, 2019

Severity

Medium

Analysis Summary


CVE-2011-1079


The bnep_sock_ioctl function in net/bluetooth/bnep/sock.c in the Linux kernel before 2.6.39 does not ensure that a certain device field ends with a ‘\0’ character, which allows local users to obtain potentially sensitive information from kernel stack memory, or cause a denial of service (BUG and system crash), via a BNEPCONNADD command.

CVE-2019-11810
 An issue was discovered in the Linux kernel before 5.0.7. A NULL pointer dereference can occur when megasas_create_frame_pool() fails in megasas_alloc_cmds() in drivers/scsi/megaraid/megaraid_sas_base.c. This causes a Denial of Service, related to a use-after-free.

CVE-2018-20836
 An issue was discovered in the Linux kernel before 4.20. There is a race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c, leading to a use-after-free.

CVE-2019-11884
 The do_hidp_sock_ioctl function in net/bluetooth/hidp/sock.c in the Linux kernel before 5.0.15 allows a local user to obtain potentially sensitive information from kernel stack memory via a HIDPCONNADD command, because a name field may not end with a ‘\0’ character.

CVE-2018-14633
 A security flaw was found in the chap_server_compute_md5() function in the ISCSI target code in the Linux kernel in a way an authentication request from an ISCSI initiator is processed. An unauthenticated remote attacker can cause a stack buffer overflow and smash up to 17 bytes of the stack. The attack requires the iSCSI target to be enabled on the victim host. Depending on how the target’s code was built (i.e. depending on a compiler, compile flags and hardware architecture) an attack may lead to a system crash and thus to a denial-of-service or possibly to a non-authorized access to data exported by an iSCSI target. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.

CVE-2019-11815
 An issue was discovered in rds_tcp_kill_sock in net/rds/tcp.c in the Linux kernel before 5.0.8. There is a race condition leading to a use-after-free, related to net namespace cleanup.

CVE-2019-11478

CVE-2019-11479

CVE-2019-11477

Impact

Unauthorized System access
Denial of Service
Exposure of sensitive information

Affected Vendors

Oracle

Affected Products

Oracle Linux 5
Oracle Linux 6
Oracle Linux 7

Remediation

Apply update packages via the yum or rpm utility.

  • Services
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      • APT Assessment
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    • Respond
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      • Incident Analysis
  • Transform
    • SOC Consultancy
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    •     SOC Model Evaluation
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    •     SIEM Gap Analysis
    •     SIEM Optimization
    •     SOC Content Pack
  • Train
    • Security Awareness and Training
    • Tabletop Exercise
    • Simulated Cyber Attack Exercises
  • Managed Security
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      • Hybrid SOC
    • Managed Security Services
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