CVE-2023-52435

一、漏洞信息
 漏洞编号：[CVE-2023-52435](https://nvd.nist.gov/vuln/detail/CVE-2023-52435)
 漏洞归属组件：[kernel](https://gitee.com/src-openeuler/kernel)
 漏洞归属的版本：4.19.140,4.19.194,4.19.90,5.10.0,6.1.0,6.1.14,6.1.19,6.1.5,6.1.6,6.1.8,6.4.0
 CVSS V2.0分值：
  BaseScore：0.0 Low
  Vector：CVSS：2.0/
 漏洞简述：
  In the Linux kernel, the following vulnerability has been resolved:net: prevent mss overflow in skb_segment()Once again syzbot is able to crash the kernel in skb_segment() [1]GSO_BY_FRAGS is a forbidden value, but unfortunately the followingcomputation in skb_segment() can reach it quite easily :	mss = mss * partial_segs;65535 = 3 * 5 * 17 * 257, so many initial values of mss can lead toa bad final result.Make sure to limit segmentation so that the new mss value is smallerthan GSO_BY_FRAGS.[1]general protection fault, probably for non-canonical address 0xdffffc000000000e: 0000 [#1] PREEMPT SMP KASANKASAN: null-ptr-deref in range [0x0000000000000070-0x0000000000000077]CPU: 1 PID: 5079 Comm: syz-executor993 Not tainted 6.7.0-rc4-syzkaller-00141-g1ae4cd3cbdd0 #0Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023RIP: 0010:skb_segment+0x181d/0x3f30 net/core/skbuff.c:4551Code: 83 e3 02 e9 fb ed ff ff e8 90 68 1c f9 48 8b 84 24 f8 00 00 00 48 8d 78 70 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 8a 21 00 00 48 8b 84 24 f8 00RSP: 0018:ffffc900043473d0 EFLAGS: 00010202RAX: dffffc0000000000 RBX: 0000000000010046 RCX: ffffffff886b1597RDX: 000000000000000e RSI: ffffffff886b2520 RDI: 0000000000000070RBP: ffffc90004347578 R08: 0000000000000005 R09: 000000000000ffffR10: 000000000000ffff R11: 0000000000000002 R12: ffff888063202ac0R13: 0000000000010000 R14: 000000000000ffff R15: 0000000000000046FS: 0000555556e7e380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033CR2: 0000000020010000 CR3: 0000000027ee2000 CR4: 00000000003506f0DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400Call Trace:<TASK>udp6_ufo_fragment+0xa0e/0xd00 net/ipv6/udp_offload.c:109ipv6_gso_segment+0x534/0x17e0 net/ipv6/ip6_offload.c:120skb_mac_gso_segment+0x290/0x610 net/core/gso.c:53__skb_gso_segment+0x339/0x710 net/core/gso.c:124skb_gso_segment include/net/gso.h:83 [inline]validate_xmit_skb+0x36c/0xeb0 net/core/dev.c:3626__dev_queue_xmit+0x6f3/0x3d60 net/core/dev.c:4338dev_queue_xmit include/linux/netdevice.h:3134 [inline]packet_xmit+0x257/0x380 net/packet/af_packet.c:276packet_snd net/packet/af_packet.c:3087 [inline]packet_sendmsg+0x24c6/0x5220 net/packet/af_packet.c:3119sock_sendmsg_nosec net/socket.c:730 [inline]__sock_sendmsg+0xd5/0x180 net/socket.c:745__sys_sendto+0x255/0x340 net/socket.c:2190__do_sys_sendto net/socket.c:2202 [inline]__se_sys_sendto net/socket.c:2198 [inline]__x64_sys_sendto+0xe0/0x1b0 net/socket.c:2198do_syscall_x64 arch/x86/entry/common.c:52 [inline]do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83entry_SYSCALL_64_after_hwframe+0x63/0x6bRIP: 0033:0x7f8692032aa9Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48RSP: 002b:00007fff8d685418 EFLAGS: 00000246 ORIG_RAX: 000000000000002cRAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f8692032aa9RDX: 0000000000010048 RSI: 00000000200000c0 RDI: 0000000000000003RBP: 00000000000f4240 R08: 0000000020000540 R09: 0000000000000014R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff8d685480R13: 0000000000000001 R14: 00007fff8d685480 R15: 0000000000000003</TASK>Modules linked in:---[ end trace 0000000000000000 ]---RIP: 0010:skb_segment+0x181d/0x3f30 net/core/skbuff.c:4551Code: 83 e3 02 e9 fb ed ff ff e8 90 68 1c f9 48 8b 84 24 f8 00 00 00 48 8d 78 70 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 8a 21 00 00 48 8b 84 24 f8 00RSP: 0018:ffffc900043473d0 EFLAGS: 00010202RAX: dffffc0000000000 RBX: 0000000000010046 RCX: ffffffff886b1597RDX: 000000000000000e RSI: ffffffff886b2520 RDI: 0000000000000070RBP: ffffc90004347578 R0---truncated---
 漏洞公开时间：2024-02-21 04:15:08
 漏洞创建时间：2024-02-21 04:31:19
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2023-52435
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/23d05d563b7e7b0314e65c8e882bc27eac2da8e7 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/6c53e8547687d9c767c139cd4b50af566f58c29a |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/8f8f185643747fbb448de6aab0efa51c679909a3 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/95b3904a261a9f810205da560e802cc326f50d77 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/989b0ff35fe5fc9652ee5bafbe8483db6f27b137 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/cd1022eaf87be8e6151435bd4df4c242c347e083 |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-52435 | https://bugzilla.suse.com/show_bug.cgi?id=1220138 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2023-52435 | https://bugzilla.suse.com/show_bug.cgi?id=1220138 |
| suse_bugzilla | https://git.kernel.org/stable/c/23d05d563b7e7b0314e65c8e882bc27eac2da8e7 | https://bugzilla.suse.com/show_bug.cgi?id=1220138 |
| suse_bugzilla | https://git.kernel.org/stable/c/95b3904a261a9f810205da560e802cc326f50d77 | https://bugzilla.suse.com/show_bug.cgi?id=1220138 |
| redhat_bugzilla | https://git.kernel.org/stable/c/23d05d563b7e7b0314e65c8e882bc27eac2da8e7 | https://bugzilla.redhat.com/show_bug.cgi?id=2265292 |
| redhat_bugzilla | https://git.kernel.org/stable/c/95b3904a261a9f810205da560e802cc326f50d77 | https://bugzilla.redhat.com/show_bug.cgi?id=2265292 |
| cve_search |  | https://git.kernel.org/stable/c/95b3904a261a9f810205da560e802cc326f50d77 |
| cve_search |  | https://git.kernel.org/stable/c/23d05d563b7e7b0314e65c8e882bc27eac2da8e7 |
| cve_search |  | https://git.kernel.org/stable/c/cd1022eaf87be8e6151435bd4df4c242c347e083 |
| cve_search |  | https://git.kernel.org/stable/c/8f8f185643747fbb448de6aab0efa51c679909a3 |
| cve_search |  | https://git.kernel.org/stable/c/6c53e8547687d9c767c139cd4b50af566f58c29a |
| cve_search |  | https://git.kernel.org/stable/c/989b0ff35fe5fc9652ee5bafbe8483db6f27b137 |

</details>

漏洞分析指导链接：
  https://gitee.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
 漏洞数据来源:
  openBrain开源漏洞感知系统
 漏洞补丁信息：
  <details>
<summary>详情(点击展开)</summary>

无
</details>

二、漏洞分析结构反馈
 影响性分析说明：
    A flaw was found in the Linux kernel’s net/core/skbuff.c subsystem. The GSO_BY_FRAGS is a forbidden value and allows the following computation in skb_segment() to reach it. The : mss = mss * partial_segs and many initial mss values can lead to a bad final result. Limit the segmentation so that the new mss value is smaller than GSO_BY_FRAGS. 
 openEuler评分：
  4.7
 Vector：CVSS：2.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
 受影响版本排查(受影响/不受影响)：
  1.openEuler-20.03-LTS-SP1(4.19.90):受影响
2.openEuler-20.03-LTS-SP3(4.19.90):受影响
3.openEuler-20.03-LTS-SP4(4.19.90):受影响
4.openEuler-22.03-LTS(5.10.0):受影响
5.openEuler-22.03-LTS-SP1(5.10.0):受影响
6.openEuler-22.03-LTS-SP2(5.10.0):受影响
7.openEuler-22.03-LTS-SP3(5.10.0):受影响
8.openEuler-22.03-LTS-Next(5.10.0):受影响
9.master(6.1.0):不受影响

修复是否涉及abi变化(是/否)：
  1.openEuler-20.03-LTS-SP1(4.19.90):否
2.openEuler-20.03-LTS-SP3(4.19.90):否
3.openEuler-20.03-LTS-SP4(4.19.90):否
4.openEuler-22.03-LTS(5.10.0):否
5.openEuler-22.03-LTS-SP1(5.10.0):否
6.openEuler-22.03-LTS-SP2(5.10.0):否
7.openEuler-22.03-LTS-SP3(5.10.0):否
8.master(6.1.0):否
9.openEuler-22.03-LTS-Next(5.10.0):否

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2024-1244

@yangyingliang ,@gatieme ,@jiaoff ,@guohaocs2c ,@hanjun-guo ,@woqidaideshi ,@newbeats ,@zhangyi089 ,@colyli ,@thundertown ,@htforge ,@chiqijun ,@lengchao ,@zhujianwei001 ,@kylin-mayukun ,@wangxiongfeng ,@wkfxxx ,@SuperSix173 ,@jentlestea ,@oskernel0719 
**issue处理注意事项:** 
**1. 当前issue受影响的分支提交pr时, 须在pr描述中填写当前issue编号进行关联, 否则无法关闭当前issue;**
**2. 模板内容需要填写完整, 无论是受影响或者不受影响都需要填写完整内容,未引入的分支不需要填写, 否则无法关闭当前issue;**
**3. 以下为模板中需要填写完整的内容, 请复制到评论区回复, 注: 内容的标题名称(影响性分析说明, openEuler评分, 受影响版本排查(受影响/不受影响), 修复是否涉及abi变化(是/否))不能省略,省略后cve-manager将无法正常解析填写内容.**
************************************************************************
影响性分析说明:

openEuler评分: (评分和向量)

受影响版本排查(受影响/不受影响): 
1.master(6.1.0):
2.openEuler-20.03-LTS-SP1(4.19.90):
3.openEuler-20.03-LTS-SP4(4.19.90):
4.openEuler-22.03-LTS(5.10.0):
5.openEuler-22.03-LTS-Next(5.10.0):
6.openEuler-22.03-LTS-SP1(5.10.0):
7.openEuler-22.03-LTS-SP2(5.10.0):
8.openEuler-22.03-LTS-SP3(5.10.0):

修复是否涉及abi变化(是/否)：
1.master(6.1.0):
2.openEuler-20.03-LTS-SP1(4.19.90):
3.openEuler-20.03-LTS-SP4(4.19.90):
4.openEuler-22.03-LTS(5.10.0):
5.openEuler-22.03-LTS-Next(5.10.0):
6.openEuler-22.03-LTS-SP1(5.10.0):
7.openEuler-22.03-LTS-SP2(5.10.0):
8.openEuler-22.03-LTS-SP3(5.10.0):

-----------------------------------------------------------------------
issue处理具体操作请参考: 
https://gitee.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
pr关联issue具体操作请参考:
https://gitee.com/help/articles/4142

<table><tr><th white-space: nowrap;>参考网址</th> <th white-space: nowrap;>关联pr</th> <th white-space: nowrap;>状态</th> <th white-space: nowrap;>补丁链接</th></tr><tr><td rowspan="1">https://nvd.nist.gov/vuln/detail/CVE-2023-52435</td><td>None</td><td>None</td><td><a href=https://git.kernel.org/stable/c/95b3904a261a9f810205da560e802cc326f50d77>https://git.kernel.org/stable/c/95b3904a261a9f810205da560e802cc326f50d77</a><br /><a href=https://git.kernel.org/stable/c/23d05d563b7e7b0314e65c8e882bc27eac2da8e7>https://git.kernel.org/stable/c/23d05d563b7e7b0314e65c8e882bc27eac2da8e7</a></td></tr><tr><td rowspan="1">https://ubuntu.com/security/CVE-2023-52435</td><td>None</td><td>None</td><td><a href=https://discourse.ubuntu.com/c/ubuntu-pro>https://discourse.ubuntu.com/c/ubuntu-pro</a></td></tr><tr><td rowspan="1">https://www.opencve.io/cve/CVE-2023-52435</td><td>None</td><td>None</td><td><a href=https://git.kernel.org/stable/c/95b3904a261a9f810205da560e802cc326f50d77>https://git.kernel.org/stable/c/95b3904a261a9f810205da560e802cc326f50d77</a><br /><a href=https://git.kernel.org/stable/c/23d05d563b7e7b0314e65c8e882bc27eac2da8e7>https://git.kernel.org/stable/c/23d05d563b7e7b0314e65c8e882bc27eac2da8e7</a></td></tr><tr><td>https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2023-52435</td><td></td><td></td><td></td></tr><tr><td rowspan="1">https://security-tracker.debian.org/tracker/CVE-2023-52435</td><td>None</td><td>None</td><td><a href=https://git.kernel.org/linus/23d05d563b7e7b0314e65c8e882bc27eac2da8e7>https://git.kernel.org/linus/23d05d563b7e7b0314e65c8e882bc27eac2da8e7</a></td></tr></table>

> 说明：补丁链接仅供初步排查参考，实际可用性请人工再次确认，补丁下载验证可使用[CVE补丁工具](https://gitee.com/openeuler/cve-manager/blob/master/cve-agency-manager/cve_tracking/README.md)。
若补丁不准确，烦请在此issue下评论 '/report-patch 参考网址 补丁链接1,补丁链接2' 反馈正确信息，便于我们不断优化工具，不胜感激。
如 /report-patch https://security-tracker.debian.org/tracker/CVE-2021-3997 https://github.com/systemd/systemd/commit/5b1cf7a9be37e20133c0208005274ce4a5b5c6a1

CVE-2023-52435                                                                                           
I92HXW                                                                                                   
                                                                                                         
影响性分析说明：                                                                                         
A flaw was found in the Linux kernel’s net/core/skbuff.c subsystem. The GSO_BY_FRAGS is a forbidden value and allows the following computation in skb_segment() to reach it. The : mss = mss * partial_segs and many initial mss values can lead to a bad final result. Limit the segmentation so that the new mss value is smaller than GSO_BY_FRAGS.                                                                              
                                                                                                         
openEuler评分:(评分和向量)                                                                               
4.7                                                                                                      
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H                                                             
                                                                                                         
                                                                                                         
受影响版本排查(受影响/不受影响):                                                                         
1.openEuler-20.03-LTS-SP1(4.19.90):受影响                                                                
2.openEuler-20.03-LTS-SP3:受影响                                                                         
3.openEuler-20.03-LTS-SP4:受影响                                                                         
4.openEuler-22.03-LTS:受影响                                                                             
5.openEuler-22.03-LTS-SP1:受影响                                                                         
6.openEuler-22.03-LTS-SP2:受影响                                                                         
7.openEuler-22.03-LTS-SP3:受影响                                                                         
8.master(6.1.0):不受影响                                                                                 
9.openEuler-22.03-LTS-Next:受影响                                                                        
                                                                                                         
修复是否涉及abi变化(是/否)：                                                                             
1.openEuler-20.03-LTS-SP1(4.19.90):否                                                                    
2.openEuler-20.03-LTS-SP3:否                                                                             
3.openEuler-20.03-LTS-SP4:否                                                                             
4.openEuler-22.03-LTS:否                                                                                 
5.openEuler-22.03-LTS-SP1:否                                                                             
6.openEuler-22.03-LTS-SP2:否                                                                             
7.openEuler-22.03-LTS-SP3:否                                                                             
8.master(6.1.0):否                                                                                       
9.openEuler-22.03-LTS-Next:否

@CTC-XiboWang 经过 cve-manager 解析, 已分析的内容如下表所示:
| 状态  | 需分析 | 内容 |
|:--:|:--:|---------|
|已分析|1.影响性分析说明|A flaw was found in the Linux kernel’s net/core/skbuff.c subsystem. The GSO_BY_FRAGS is a forbidden value and allows the following computation in skb_segment() to reach it. The : mss = mss * partial_segs and many initial mss values can lead to a bad final result. Limit the segmentation so that the new mss value is smaller than GSO_BY_FRAGS.|
|已分析|2.openEulerScore|4.7|
|已分析|3.openEulerVector|AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H|
|已分析|4.受影响版本排查|openEuler-20.03-LTS-SP1:受影响,openEuler-20.03-LTS-SP3:受影响,openEuler-20.03-LTS-SP4:受影响,openEuler-22.03-LTS:受影响,openEuler-22.03-LTS-SP1:受影响,openEuler-22.03-LTS-SP2:受影响,openEuler-22.03-LTS-SP3:受影响,openEuler-22.03-LTS-Next:受影响,master:不受影响|
|已分析|5.修复是否涉及abi变化|openEuler-20.03-LTS-SP1:否,openEuler-20.03-LTS-SP3:否,openEuler-20.03-LTS-SP4:否,openEuler-22.03-LTS:否,openEuler-22.03-LTS-SP1:否,openEuler-22.03-LTS-SP2:否,openEuler-22.03-LTS-SP3:否,master:否,openEuler-22.03-LTS-Next:否|

**请确认分析内容的准确性, 确认无误后, 您可以进行后续步骤, 否则您可以继续分析.**

src-openEuler/kernel

内容风险标识

评论 (16)

src-openEuler/kernel .gitee-modal { width: 500px !important; }

内容风险标识

CVE-2023-52435

评论 (16)

搜索帮助

src-openEuler/kernel