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OVAL Definitions
>
OVAL Definition Details
Id
oval:com.altx-soft.nix:def:266814
[Rus]
Version
1
Class
patch
ALTXid
500054
Language
English
Severity
High
Title
ELSA-2024-1831 -- kernel security update
Description
[2.6.32-754.53.1.OL6]
- net/sched: sch_qfq: refactor parsing of netlink parameters [Orabug: 36517546]
- net/sched: sch_qfq: account for stab overhead in qfq_enqueue {CVE-2023-3611} [Orabug: 36517546]
- net/sched: cls_fw: Fix improper refcount update leads to use-after-free {CVE-2023-3776} [Orabug: 36517546]
- net: sched: sch_qfq: Fix UAF in qfq_dequeue() {CVE-2023-4921} [Orabug: 36517546]
- net: sched: sch_qfq: prevent slab-out-of-bounds in qfq_activate_agg {CVE-2023-31436} [Orabug: 36517546]
Family
unix
Platform
Oracle Linux 6
Product
kernel
Reference
VENDOR: ELSA-2024-1831
VENDOR: ELSA-2024-1831
Id:
ELSA-2024-1831
Reference:
http://linux.oracle.com/errata/ELSA-2024-1831.html
CVE: CVE-2023-3611
CVE: CVE-2023-3611
Id:
CVE-2023-3611
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-3611
Comment
: An out-of-bounds write vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation. The qfq_change_agg() function in net/sched/sch_qfq.c allows an out-of-bounds write because lmax is updated according to packet sizes without bounds checks. We recommend upgrading past commit 3e337087c3b5805fe0b8a46ba622a962880b5d64.
CVSSv3 Score:
7.8
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE:
787 (Out-of-bounds Write)
References:
https://kernel.dance/3e337087c3b5805fe0b8a46ba622a962880b5d64 (MISC)
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3e337087c3b5805fe0b8a46ba622a962880b5d64 (MISC)
https://www.debian.org/security/2023/dsa-5480 (MISC)
https://security.netapp.com/advisory/ntap-20230908-0002/ (MISC)
https://www.debian.org/security/2023/dsa-5492 (MISC)
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html (MISC)
https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html ()
CVE: CVE-2023-3776
CVE: CVE-2023-3776
Id:
CVE-2023-3776
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-3776
Comment
: A use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to achieve local privilege escalation. If tcf_change_indev() fails, fw_set_parms() will immediately return an error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can control the reference counter and set it to zero, they can cause the reference to be freed, leading to a use-after-free vulnerability. We recommend upgrading past commit 0323bce598eea038714f941ce2b22541c46d488f.
CVSSv3 Score:
7.8
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE:
416 (Use After Free)
References:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=0323bce598eea038714f941ce2b22541c46d488f (MISC)
https://kernel.dance/0323bce598eea038714f941ce2b22541c46d488f (MISC)
https://www.debian.org/security/2023/dsa-5480 (MISC)
https://www.debian.org/security/2023/dsa-5492 (MISC)
http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSN-0098-1.html (MISC)
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html (MISC)
http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html ()
https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html ()
https://security.netapp.com/advisory/ntap-20240202-0003/ ()
CVE: CVE-2023-31436
CVE: CVE-2023-31436
Id:
CVE-2023-31436
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-31436
Comment
: qfq_change_class in net/sched/sch_qfq.c in the Linux kernel before 6.2.13 allows an out-of-bounds write because lmax can exceed QFQ_MIN_LMAX.
CVSSv3 Score:
7.8
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE:
787 (Out-of-bounds Write)
References:
https://github.com/torvalds/linux/commit/3037933448f60f9acb705997eae62013ecb81e0d (MISC)
https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.13 (MISC)
https://www.spinics.net/lists/stable-commits/msg294885.html (MISC)
DSA-5402 (DEBIAN)
[debian-lts-announce] 20230605 [SECURITY] [DLA 3446-1] linux-5.10 security update (MLIST)
https://security.netapp.com/advisory/ntap-20230609-0001/ (CONFIRM)
http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html (MISC)
http://packetstormsecurity.com/files/173757/Kernel-Live-Patch-Security-Notice-LSN-0096-1.html (MISC)
http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html ()
CVE: CVE-2023-4921
CVE: CVE-2023-4921
Id:
CVE-2023-4921
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-4921
Comment
: A use-after-free vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation. When the plug qdisc is used as a class of the qfq qdisc, sending network packets triggers use-after-free in qfq_dequeue() due to the incorrect .peek handler of sch_plug and lack of error checking in agg_dequeue(). We recommend upgrading past commit 8fc134fee27f2263988ae38920bc03da416b03d8.
CVSSv3 Score:
7.8
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE:
416 (Use After Free)
References:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8fc134fee27f2263988ae38920bc03da416b03d8 (MISC)
https://kernel.dance/8fc134fee27f2263988ae38920bc03da416b03d8 (MISC)
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html (MISC)
https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html ()
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