CVE-2023-52527
published 2024-03-02CVE-2023-52527: In the Linux kernel, the following vulnerability has been resolved: ipv4, ipv6: Fix handling of transhdrlen in __ip{,6}_append_data() Including the transhdrlen…
PriorityP421medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.23%
13.4th percentile
In the Linux kernel, the following vulnerability has been resolved:
ipv4, ipv6: Fix handling of transhdrlen in __ip{,6}_append_data()
Including the transhdrlen in length is a problem when the packet is
partially filled (e.g. something like send(MSG_MORE) happened previously)
when appending to an IPv4 or IPv6 packet as we don't want to repeat the
transport header or account for it twice. This can happen under some
circumstances, such as splicing into an L2TP socket.
The symptom observed is a warning in __ip6_append_data():
WARNING: CPU: 1 PID: 5042 at net/ipv6/ip6_output.c:1800 __ip6_append_data.isra.0+0x1be8/0x47f0 net/ipv6/ip6_output.c:1800
that occurs when MSG_SPLICE_PAGES is used to append more data to an already
partially occupied skbuff. The warning occurs when 'copy' is larger than
the amount of data in the message iterator. This is because the requested
length includes the transport header length when it shouldn't. This can be
triggered by, for example:
sfd = socket(AF_INET6, SOCK_DGRAM, IPPROTO_L2TP);
bind(sfd, ...); // ::1
connect(sfd, ...); // ::1 port 7
send(sfd, buffer, 4100, MSG_MORE);
sendfile(sfd, dfd, NULL, 1024);
Fix this by only adding transhdrlen into the length if the write queue is
empty in l2tp_ip6_sendmsg(), analogously to how UDP does things.
l2tp_ip_sendmsg() looks like it won't suffer from this problem as it builds
the UDP packet itself.
Affected
24 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.64-1 (bookworm) | linux 6.1.64-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= a32e0eec7042b21ccb52896cf715e3e2641fed93 < 7626b9fed53092aa2147978070e610ecb61af844 | 7626b9fed53092aa2147978070e610ecb61af844 |
| linux | linux | >= a32e0eec7042b21ccb52896cf715e3e2641fed93 < 559d697c5d072593d22b3e0bd8b8081108aeaf59 | 559d697c5d072593d22b3e0bd8b8081108aeaf59 |
| linux | linux | >= a32e0eec7042b21ccb52896cf715e3e2641fed93 < 1fc793d68d50dee4782ef2e808913d5dd880bcc6 | 1fc793d68d50dee4782ef2e808913d5dd880bcc6 |
| linux | linux | >= a32e0eec7042b21ccb52896cf715e3e2641fed93 < 96b2e1090397217839fcd6c9b6d8f5d439e705ed | 96b2e1090397217839fcd6c9b6d8f5d439e705ed |
| linux | linux | >= a32e0eec7042b21ccb52896cf715e3e2641fed93 < cd1189956393bf850b2e275e37411855d3bd86bb | cd1189956393bf850b2e275e37411855d3bd86bb |
| linux | linux | >= a32e0eec7042b21ccb52896cf715e3e2641fed93 < f6a7182179c0ed788e3755ee2ed18c888ddcc33f | f6a7182179c0ed788e3755ee2ed18c888ddcc33f |
| linux | linux | >= a32e0eec7042b21ccb52896cf715e3e2641fed93 < fe80658c08e3001c80c5533cd41abfbb0e0e28fd | fe80658c08e3001c80c5533cd41abfbb0e0e28fd |
| linux | linux | >= a32e0eec7042b21ccb52896cf715e3e2641fed93 < 9d4c75800f61e5d75c1659ba201b6c0c7ead3070 | 9d4c75800f61e5d75c1659ba201b6c0c7ead3070 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.205-1 | 5.10.205-1 |
| linux | linux_kernel | >= 0 < 6.1.64-1 | 6.1.64-1 |
| linux | linux_kernel | >= 0 < 6.5.8-1 | 6.5.8-1 |
| linux | linux_kernel | >= 0 < 6.5.8-1 | 6.5.8-1 |
| linux | linux_kernel | >= 0 < 4.4.0-259.293 | 4.4.0-259.293 |
| linux | linux_kernel | >= 0 < 4.15.0-229.241 | 4.15.0-229.241 |
| linux | linux_kernel | >= 3.5 < 4.14.327 | 4.14.327 |
| linux | linux_kernel | >= 4.15 < 4.19.296 | 4.19.296 |
| linux | linux_kernel | >= 4.20 < 5.4.258 | 5.4.258 |
| linux | linux_kernel | >= 5.11 < 5.15.135 | 5.15.135 |
| linux | linux_kernel | >= 5.16 < 6.1.57 | 6.1.57 |
| linux | linux_kernel | >= 5.5 < 5.10.198 | 5.10.198 |
| linux | linux_kernel | >= 6.2 < 6.5.7 | 6.5.7 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
vendor_ubuntu5.5MEDIUM
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- GPU drivers;
- Greybus drivers;
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- Network drivers;
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- F2FS file system;
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Summary: Several security issues were fixed in the Linux kernel.
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An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- GPU drivers;
- Input Device (Tablet) drivers;
- Modular ISDN driver;
- Multiple devices driver;
- Network drivers;
- Near Field Communication (NFC) drivers;
- SCSI drivers;
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- VFIO drivers;
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- JFS file system;
- NILFS2 file system;
- Networking core;
- IPv4 networking;
- L2TP protocol;
- Netfilter;
- RxRPC session sockets;
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Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the JFS file system contained an out-of-bounds read
vulnerability when printing xattr debug information. A local attacker could
use this to cause a denial of service (system crash).
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- GPU drivers;
- Greybus drivers;
- Modular ISDN driver;
- Multiple devices driver;
- Network drivers;
- SCSI drivers;
- VFIO drivers;
- F2FS file system;
- GFS2 file system;
- JFS file system;
- NILFS2 file system;
- Kernel debugger infrastructure;
- Bluetooth subsystem;
- IPv4 networking;
- L2TP protocol;
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Red Hat
kernel: ipv4, ipv6: Fix handling of transhdrlen in __ip{,6}_append_data()
vendor_redhat·2024-03-02·CVSS 5.5
CVE-2023-52527 [MEDIUM] CWE-20 kernel: ipv4, ipv6: Fix handling of transhdrlen in __ip{,6}_append_data()
kernel: ipv4, ipv6: Fix handling of transhdrlen in __ip{,6}_append_data()
In the Linux kernel, the following vulnerability has been resolved:
ipv4, ipv6: Fix handling of transhdrlen in __ip{,6}_append_data()
Including the transhdrlen in length is a problem when the packet is
partially filled (e.g. something like send(MSG_MORE) happened previously)
when appending to an IPv4 or IPv6 packet as we don't want to repeat the
transport header or account for it twice. This can happen under some
circumstances, such as splicing into an L2TP socket.
The symptom observed is a warning in __ip6_append_data():
WARNING: CPU: 1 PID: 5042 at net/ipv6/ip6_output.c:1800 __ip6_append_data.isra.0+0x1be8/0x47f0 net/ipv6/ip6_output.c:1800
that occurs when MSG_SPLICE_PAGES is used to append more data to an already
Debian
CVE-2023-52527: linux - In the Linux kernel, the following vulnerability has been resolved: ipv4, ipv6:...
vendor_debian·2023·CVSS 5.5
CVE-2023-52527 [MEDIUM] CVE-2023-52527: linux - In the Linux kernel, the following vulnerability has been resolved: ipv4, ipv6:...
In the Linux kernel, the following vulnerability has been resolved: ipv4, ipv6: Fix handling of transhdrlen in __ip{,6}_append_data() Including the transhdrlen in length is a problem when the packet is partially filled (e.g. something like send(MSG_MORE) happened previously) when appending to an IPv4 or IPv6 packet as we don't want to repeat the transport header or account for it twice. This can happen under some circumstances, such as splicing into an L2TP socket. The symptom observed is a warning in __ip6_append_data(): WARNING: CPU: 1 PID: 5042 at net/ipv6/ip6_output.c:1800 __ip6_append_data.isra.0+0x1be8/0x47f0 net/ipv6/ip6_output.c:1800 that occurs when MSG_SPLICE_PAGES is used to append more data to an already partially occupied skbuff. The warning occurs when 'copy' is larger than t
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linux-azure vulnerabilities
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[MEDIUM] linux-azure vulnerabilities
linux-azure vulnerabilities
It was discovered that the JFS file system contained an out-of-bounds read
vulnerability when printing xattr debug information. A local attacker could
use this to cause a denial of service (system crash).
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- GPU drivers;
- Greybus drivers;
- Modular ISDN driver;
- Multiple devices driver;
- Network drivers;
- SCSI drivers;
- VFIO drivers;
- F2FS file system;
- GFS2 file system;
- JFS file system;
- NILFS2 file system;
- Kernel debugger infrastructure;
- Bluetooth subsystem;
- IPv4 networking;
- L2TP protocol;
- Netfilter;
- RxRPC session sockets;
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OSV
linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities
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[MEDIUM] linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities
linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- GPU drivers;
- Input Device (Tablet) drivers;
- Modular ISDN driver;
- Multiple devices driver;
- Network drivers;
- Near Field Communication (NFC) drivers;
- SCSI drivers;
- GCT GDM724x LTE driver;
- USB subsystem;
- VFIO drivers;
- GFS2 file system;
- JFS file system;
- NILFS2 file system;
- Networking core;
- IPv4 networking;
- L2TP protocol;
- Netfilter;
- RxRPC session sockets;
(CVE-2024-26651, CVE-2024-38583, CVE-2023-52527, CVE-2024-26880,
CVE-2022-48850, CVE-2024-26733, CVE-2021-47188, CVE-2024-42154,
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OSV
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[MEDIUM] linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-hwe, linux-kvm, linux-oracle vulnerabilities
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It was discovered that the JFS file system contained an out-of-bounds read
vulnerability when printing xattr debug information. A local attacker could
use this to cause a denial of service (system crash).
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- GPU drivers;
- Greybus drivers;
- Modular ISDN driver;
- Multiple devices driver;
- Network drivers;
- SCSI drivers;
- VFIO drivers;
- F2FS file system;
- GFS2 file system;
- JFS file system;
- NILFS2 file system;
- Kernel debugger infrastructure;
- Bluetooth subsystem
GHSA
GHSA-j6qg-38wf-82gm: In the Linux kernel, the following vulnerability has been resolved:
ipv4, ipv6: Fix handling of transhdrlen in __ip{,6}_append_data()
Including the
ghsa_unreviewed·2024-03-03
CVE-2023-52527 [MEDIUM] GHSA-j6qg-38wf-82gm: In the Linux kernel, the following vulnerability has been resolved:
ipv4, ipv6: Fix handling of transhdrlen in __ip{,6}_append_data()
Including the
In the Linux kernel, the following vulnerability has been resolved:
ipv4, ipv6: Fix handling of transhdrlen in __ip{,6}_append_data()
Including the transhdrlen in length is a problem when the packet is
partially filled (e.g. something like send(MSG_MORE) happened previously)
when appending to an IPv4 or IPv6 packet as we don't want to repeat the
transport header or account for it twice. This can happen under some
circumstances, such as splicing into an L2TP socket.
The symptom observed is a warning in __ip6_append_data():
WARNING: CPU: 1 PID: 5042 at net/ipv6/ip6_output.c:1800 __ip6_append_data.isra.0+0x1be8/0x47f0 net/ipv6/ip6_output.c:1800
that occurs when MSG_SPLICE_PAGES is used to append more data to an already
partially occupied skbuff. The warning occurs when 'copy' is larger t
OSV
CVE-2023-52527: In the Linux kernel, the following vulnerability has been resolved: ipv4, ipv6: Fix handling of transhdrlen in __ip{,6}_append_data() Including the tr
osv·2024-03-02·CVSS 5.5
CVE-2023-52527 [MEDIUM] CVE-2023-52527: In the Linux kernel, the following vulnerability has been resolved: ipv4, ipv6: Fix handling of transhdrlen in __ip{,6}_append_data() Including the tr
In the Linux kernel, the following vulnerability has been resolved: ipv4, ipv6: Fix handling of transhdrlen in __ip{,6}_append_data() Including the transhdrlen in length is a problem when the packet is partially filled (e.g. something like send(MSG_MORE) happened previously) when appending to an IPv4 or IPv6 packet as we don't want to repeat the transport header or account for it twice. This can happen under some circumstances, such as splicing into an L2TP socket. The symptom observed is a warning in __ip6_append_data(): WARNING: CPU: 1 PID: 5042 at net/ipv6/ip6_output.c:1800 __ip6_append_data.isra.0+0x1be8/0x47f0 net/ipv6/ip6_output.c:1800 that occurs when MSG_SPLICE_PAGES is used to append more data to an already partially occupied skbuff. The warning occurs when 'copy' is larger than t
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://git.kernel.org/stable/c/1fc793d68d50dee4782ef2e808913d5dd880bcc6https://git.kernel.org/stable/c/559d697c5d072593d22b3e0bd8b8081108aeaf59https://git.kernel.org/stable/c/7626b9fed53092aa2147978070e610ecb61af844https://git.kernel.org/stable/c/96b2e1090397217839fcd6c9b6d8f5d439e705edhttps://git.kernel.org/stable/c/9d4c75800f61e5d75c1659ba201b6c0c7ead3070https://git.kernel.org/stable/c/cd1189956393bf850b2e275e37411855d3bd86bbhttps://git.kernel.org/stable/c/f6a7182179c0ed788e3755ee2ed18c888ddcc33fhttps://git.kernel.org/stable/c/fe80658c08e3001c80c5533cd41abfbb0e0e28fdhttps://git.kernel.org/stable/c/1fc793d68d50dee4782ef2e808913d5dd880bcc6https://git.kernel.org/stable/c/559d697c5d072593d22b3e0bd8b8081108aeaf59https://git.kernel.org/stable/c/7626b9fed53092aa2147978070e610ecb61af844https://git.kernel.org/stable/c/96b2e1090397217839fcd6c9b6d8f5d439e705edhttps://git.kernel.org/stable/c/9d4c75800f61e5d75c1659ba201b6c0c7ead3070https://git.kernel.org/stable/c/cd1189956393bf850b2e275e37411855d3bd86bbhttps://git.kernel.org/stable/c/f6a7182179c0ed788e3755ee2ed18c888ddcc33fhttps://git.kernel.org/stable/c/fe80658c08e3001c80c5533cd41abfbb0e0e28fd
2024-03-02
Published