Fixed packages 14
| Release | Package | Fixed in |
|---|---|---|
| Red Hat · RHEL 6.6 AUS rhel_aus:6.6::server | kernel | 0:2.6.32-504.79.3.el6 |
| Red Hat · RHEL 6.6 AUS rhel_aus:6.6::server | kernel-abi-whitelists | 0:2.6.32-504.79.3.el6 |
| Red Hat · RHEL 6.6 AUS rhel_aus:6.6::server | kernel-debug | 0:2.6.32-504.79.3.el6 |
| Red Hat · RHEL 6.6 AUS rhel_aus:6.6::server | kernel-debug-debuginfo | 0:2.6.32-504.79.3.el6 |
| Red Hat · RHEL 6.6 AUS rhel_aus:6.6::server | kernel-debug-devel | 0:2.6.32-504.79.3.el6 |
| Red Hat · RHEL 6.6 AUS rhel_aus:6.6::server | kernel-debuginfo | 0:2.6.32-504.79.3.el6 |
| Red Hat · RHEL 6.6 AUS rhel_aus:6.6::server | kernel-debuginfo-common-x86_64 | 0:2.6.32-504.79.3.el6 |
| Red Hat · RHEL 6.6 AUS rhel_aus:6.6::server | kernel-devel | 0:2.6.32-504.79.3.el6 |
| Red Hat · RHEL 6.6 AUS rhel_aus:6.6::server | kernel-doc | 0:2.6.32-504.79.3.el6 |
| Red Hat · RHEL 6.6 AUS rhel_aus:6.6::server | kernel-firmware | 0:2.6.32-504.79.3.el6 |
| Red Hat · RHEL 6.6 AUS rhel_aus:6.6::server | perf | 0:2.6.32-504.79.3.el6 |
| Red Hat · RHEL 6.6 AUS rhel_aus:6.6::server | perf-debuginfo | 0:2.6.32-504.79.3.el6 |
| Red Hat · RHEL 6.6 AUS rhel_aus:6.6::server | python-perf | 0:2.6.32-504.79.3.el6 |
| Red Hat · RHEL 6.6 AUS rhel_aus:6.6::server | python-perf-debuginfo | 0:2.6.32-504.79.3.el6 |
Vulnerabilities 4
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High 7.5
Integer overflow in TCP_SKB_CB(skb)->tcp_gso_segs
Jonathan Looney discovered that the TCP_SKB_CB(skb)->tcp_gso_segs value was subject to an integer overflow in the Linux kernel when handling TCP Selective Acknowledgments (SACKs). A remote attacker could use this to cause a denial of service. This has been fi…
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High 7.0
A double-free can happen in idr_remove_all() in lib/idr.c in the Linux kernel 2.6 branch. An unprivileged local attacke…
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Medium 5.3
SACK can cause extensive memory use via fragmented resend queue
Jonathan Looney discovered that the TCP retransmission queue implementation in tcp_fragment in the Linux kernel could be fragmented when handling certain TCP Selective Acknowledgment (SACK) sequences. A remote attacker could use this to cause a denial of serv…
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Medium 5.3CVE-2019-11479 EPSS 91%
Jonathan Looney discovered that the Linux kernel default MSS is hard-coded to 48 bytes. This allows a remote peer to fr…
References
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article
https://access.redhat.com/security/updates/classification/#important
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article
https://access.redhat.com/security/vulnerabilities/tcpsack
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report
https://bugzilla.redhat.com/show_bug.cgi?id=1694812
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report
https://bugzilla.redhat.com/show_bug.cgi?id=1719123
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report
https://bugzilla.redhat.com/show_bug.cgi?id=1719128
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report
https://bugzilla.redhat.com/show_bug.cgi?id=1719129
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advisory
https://security.access.redhat.com/data/csaf/v2/advisories/2019/rhsa-2019_1489.json
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report
https://access.redhat.com/security/cve/CVE-2019-3896
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advisory
https://www.cve.org/CVERecord?id=CVE-2019-3896
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advisory
https://nvd.nist.gov/vuln/detail/CVE-2019-3896
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report
https://access.redhat.com/security/cve/CVE-2019-11477
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advisory
https://www.cve.org/CVERecord?id=CVE-2019-11477
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advisory
https://nvd.nist.gov/vuln/detail/CVE-2019-11477
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article
https://patchwork.ozlabs.org/project/netdev/list/?series=114310
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article
https://www.openwall.com/lists/oss-security/2019/06/17/5
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report
https://access.redhat.com/security/cve/CVE-2019-11478
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advisory
https://www.cve.org/CVERecord?id=CVE-2019-11478
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advisory
https://nvd.nist.gov/vuln/detail/CVE-2019-11478
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report
https://access.redhat.com/security/cve/CVE-2019-11479
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advisory
https://www.cve.org/CVERecord?id=CVE-2019-11479
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advisory
https://nvd.nist.gov/vuln/detail/CVE-2019-11479