rhsa-2023_5221
Vulnerability from csaf_redhat
Published
2023-09-19 08:06
Modified
2024-11-06 03:42
Summary
Red Hat Security Advisory: kpatch-patch security update
Notes
Topic
An update for kpatch-patch is now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel.
Security Fix(es):
* kernel: ipvlan: out-of-bounds write caused by unclear skb->cb (CVE-2023-3090)
* kernel: UAF in nftables when nft_set_lookup_global triggered after handling named and anonymous sets in batch requests (CVE-2023-3390)
* kernel: net/sched: cls_fw component can be exploited as result of failure in tcf_change_indev function (CVE-2023-3776)
* kernel: netfilter: use-after-free due to improper element removal in nft_pipapo_remove() (CVE-2023-4004)
* kernel: nf_tables: stack-out-of-bounds-read in nft_byteorder_eval() (CVE-2023-35001)
* kernel: cls_flower: out-of-bounds write in fl_set_geneve_opt() (CVE-2023-35788)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
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"text": "kernel: ipvlan: out-of-bounds write caused by unclear skb-\u003ecb",
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"text": "Red Hat Enterprise Linux 6 and 7 are not affected by this flaw as they did not include IPVLAN support.",
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{
"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.",
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"title": "Vulnerability description"
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{
"category": "general",
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{
"cve": "CVE-2023-35788",
"cwe": {
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"text": "2215768"
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{
"category": "description",
"text": "A flaw was found in the TC flower classifier (cls_flower) in the Networking subsystem of the Linux kernel. This issue occurs when sending two TCA_FLOWER_KEY_ENC_OPTS_GENEVE packets with a total size of 252 bytes, which results in an out-of-bounds write when the third packet enters fl_set_geneve_opt, potentially leading to a denial of service or privilege escalation.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: cls_flower: out-of-bounds write in fl_set_geneve_opt()",
"title": "Vulnerability summary"
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{
"category": "other",
"text": "Red Hat Enterprise Linux 6 is not affected by this flaw as it did not include support for the TC flower classifier.",
"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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"url": "https://www.cve.org/CVERecord?id=CVE-2023-35788"
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{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-35788",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-35788"
},
{
"category": "external",
"summary": "https://www.openwall.com/lists/oss-security/2023/06/07/1",
"url": "https://www.openwall.com/lists/oss-security/2023/06/07/1"
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"release_date": "2023-05-29T00:00:00+00:00",
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"category": "vendor_fix",
"date": "2023-09-19T08:06:11+00:00",
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"BaseOS-8.8.0.Z.MAIN.EUS:kpatch-patch-4_18_0-477_21_1-debugsource-0:1-1.el8_8.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "kernel: cls_flower: out-of-bounds write in fl_set_geneve_opt()"
}
]
}
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.