CVE-2022-48687

一、漏洞信息
 漏洞编号：[CVE-2022-48687](https://nvd.nist.gov/vuln/detail/CVE-2022-48687)
 漏洞归属组件：[kernel](https://gitee.com/src-openeuler/kernel)
 漏洞归属的版本：4.19.140,4.19.194,4.19.90,5.10.0,6.1.0,6.1.14,6.1.19,6.1.5,6.1.6,6.1.8,6.4.0,6.6.0
 CVSS V3.0分值：
  BaseScore：5.5 Medium
  Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
 漏洞简述：
  In the Linux kernel, the following vulnerability has been resolved:ipv6: sr: fix out-of-bounds read when setting HMAC data.The SRv6 layer allows defining HMAC data that can later be used to sign IPv6Segment Routing Headers. This configuration is realised via netlink throughfour attributes: SEG6_ATTR_HMACKEYID, SEG6_ATTR_SECRET, SEG6_ATTR_SECRETLEN andSEG6_ATTR_ALGID. Because the SECRETLEN attribute is decoupled from the actuallength of the SECRET attribute, it is possible to provide invalid combinations(e.g., secret =   , secretlen = 64). This case is not checked in the code andwith an appropriately crafted netlink message, an out-of-bounds read of upto 64 bytes (max secret length) can occur past the skb end pointer and intoskb_shared_info:Breakpoint 1, seg6_genl_sethmac (skb=<optimized out>, info=<optimized out>) at net/ipv6/seg6.c:208208		memcpy(hinfo->secret, secret, slen);(gdb) bt #0  seg6_genl_sethmac (skb=<optimized out>, info=<optimized out>) at net/ipv6/seg6.c:208 #1  0xffffffff81e012e9 in genl_family_rcv_msg_doit (skb=skb@entry=0xffff88800b1f9f00, nlh=nlh@entry=0xffff88800b1b7600,    extack=extack@entry=0xffffc90000ba7af0, ops=ops@entry=0xffffc90000ba7a80, hdrlen=4, net=0xffffffff84237580 <init_net>, family=<optimized out>,    family=<optimized out>) at net/netlink/genetlink.c:731 #2  0xffffffff81e01435 in genl_family_rcv_msg (extack=0xffffc90000ba7af0, nlh=0xffff88800b1b7600, skb=0xffff88800b1f9f00,    family=0xffffffff82fef6c0 <seg6_genl_family>) at net/netlink/genetlink.c:775 #3  genl_rcv_msg (skb=0xffff88800b1f9f00, nlh=0xffff88800b1b7600, extack=0xffffc90000ba7af0) at net/netlink/genetlink.c:792 #4  0xffffffff81dfffc3 in netlink_rcv_skb (skb=skb@entry=0xffff88800b1f9f00, cb=cb@entry=0xffffffff81e01350 <genl_rcv_msg>)    at net/netlink/af_netlink.c:2501 #5  0xffffffff81e00919 in genl_rcv (skb=0xffff88800b1f9f00) at net/netlink/genetlink.c:803 #6  0xffffffff81dff6ae in netlink_unicast_kernel (ssk=0xffff888010eec800, skb=0xffff88800b1f9f00, sk=0xffff888004aed000)    at net/netlink/af_netlink.c:1319 #7  netlink_unicast (ssk=ssk@entry=0xffff888010eec800, skb=skb@entry=0xffff88800b1f9f00, portid=portid@entry=0, nonblock=<optimized out>)    at net/netlink/af_netlink.c:1345 #8  0xffffffff81dff9a4 in netlink_sendmsg (sock=<optimized out>, msg=0xffffc90000ba7e48, len=<optimized out>) at net/netlink/af_netlink.c:1921...(gdb) p/x ((struct sk_buff *)0xffff88800b1f9f00)->head + ((struct sk_buff *)0xffff88800b1f9f00)->end$1 = 0xffff88800b1b76c0(gdb) p/x secret$2 = 0xffff88800b1b76c0(gdb) p slen$3 = 64  @ The OOB data can then be read back from userspace by dumping HMAC state. Thiscommit fixes this by ensuring SECRETLEN cannot exceed the actual length ofSECRET.
 漏洞公开时间：2024-05-03 23:15:07
 漏洞创建时间：2024-05-03 23:41:34
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2022-48687
<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/076f2479fc5a15c4a970ca3b5e57d42ba09a31fa |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/3df71e11a4773d775c3633c44319f7acdb89011c |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/55195563ec29f80f984237b743de0e2b6ba4d093 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/56ad3f475482bca55b0ae544031333018eb145b3 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/84a53580c5d2138c7361c7c3eea5b31827e63b35 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/dc9dbd65c803af1607484fed5da50d41dc8dd864 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/f684c16971ed5e77dfa25a9ad25b5297e1f58eab |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-48687 | https://bugzilla.suse.com/show_bug.cgi?id=1223952 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2022-48687 | https://bugzilla.suse.com/show_bug.cgi?id=1223952 |
| suse_bugzilla | https://git.kernel.org/stable/c/076f2479fc5a15c4a970ca3b5e57d42ba09a31fa | https://bugzilla.suse.com/show_bug.cgi?id=1223952 |
| suse_bugzilla | https://git.kernel.org/stable/c/3df71e11a4773d775c3633c44319f7acdb89011c | https://bugzilla.suse.com/show_bug.cgi?id=1223952 |
| suse_bugzilla | https://git.kernel.org/stable/c/55195563ec29f80f984237b743de0e2b6ba4d093 | https://bugzilla.suse.com/show_bug.cgi?id=1223952 |
| suse_bugzilla | https://git.kernel.org/stable/c/56ad3f475482bca55b0ae544031333018eb145b3 | https://bugzilla.suse.com/show_bug.cgi?id=1223952 |
| suse_bugzilla | https://git.kernel.org/stable/c/84a53580c5d2138c7361c7c3eea5b31827e63b35 | https://bugzilla.suse.com/show_bug.cgi?id=1223952 |
| suse_bugzilla | https://git.kernel.org/stable/c/dc9dbd65c803af1607484fed5da50d41dc8dd864 | https://bugzilla.suse.com/show_bug.cgi?id=1223952 |
| suse_bugzilla | https://git.kernel.org/stable/c/f684c16971ed5e77dfa25a9ad25b5297e1f58eab | https://bugzilla.suse.com/show_bug.cgi?id=1223952 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2022/CVE-2022-48687.mbox | https://bugzilla.suse.com/show_bug.cgi?id=1223952 |
| suse_bugzilla | https://bugzilla.redhat.com/show_bug.cgi?id=2278930 | https://bugzilla.suse.com/show_bug.cgi?id=1223952 |
| redhat_bugzilla | https://lore.kernel.org/linux-cve-announce/2024050344-CVE-2022-48687-b82e@gregkh/T | https://bugzilla.redhat.com/show_bug.cgi?id=2278930 |
| ubuntu | https://www.cve.org/CVERecord?id=CVE-2022-48687 | https://ubuntu.com/security/CVE-2022-48687 |
| ubuntu | https://git.kernel.org/stable/c/dc9dbd65c803af1607484fed5da50d41dc8dd864 | https://ubuntu.com/security/CVE-2022-48687 |
| ubuntu | https://git.kernel.org/stable/c/f684c16971ed5e77dfa25a9ad25b5297e1f58eab | https://ubuntu.com/security/CVE-2022-48687 |
| ubuntu | https://git.kernel.org/stable/c/3df71e11a4773d775c3633c44319f7acdb89011c | https://ubuntu.com/security/CVE-2022-48687 |
| ubuntu | https://git.kernel.org/stable/c/076f2479fc5a15c4a970ca3b5e57d42ba09a31fa | https://ubuntu.com/security/CVE-2022-48687 |
| ubuntu | https://git.kernel.org/stable/c/55195563ec29f80f984237b743de0e2b6ba4d093 | https://ubuntu.com/security/CVE-2022-48687 |
| ubuntu | https://git.kernel.org/stable/c/56ad3f475482bca55b0ae544031333018eb145b3 | https://ubuntu.com/security/CVE-2022-48687 |
| ubuntu | https://git.kernel.org/stable/c/84a53580c5d2138c7361c7c3eea5b31827e63b35 | https://ubuntu.com/security/CVE-2022-48687 |
| ubuntu | https://nvd.nist.gov/vuln/detail/CVE-2022-48687 | https://ubuntu.com/security/CVE-2022-48687 |
| ubuntu | https://launchpad.net/bugs/cve/CVE-2022-48687 | https://ubuntu.com/security/CVE-2022-48687 |
| ubuntu | https://security-tracker.debian.org/tracker/CVE-2022-48687 | https://ubuntu.com/security/CVE-2022-48687 |
| cve_search |  | https://git.kernel.org/stable/c/dc9dbd65c803af1607484fed5da50d41dc8dd864 |
| cve_search |  | https://git.kernel.org/stable/c/f684c16971ed5e77dfa25a9ad25b5297e1f58eab |
| cve_search |  | https://git.kernel.org/stable/c/3df71e11a4773d775c3633c44319f7acdb89011c |
| cve_search |  | https://git.kernel.org/stable/c/076f2479fc5a15c4a970ca3b5e57d42ba09a31fa |
| cve_search |  | https://git.kernel.org/stable/c/55195563ec29f80f984237b743de0e2b6ba4d093 |
| cve_search |  | https://git.kernel.org/stable/c/56ad3f475482bca55b0ae544031333018eb145b3 |
| cve_search |  | https://git.kernel.org/stable/c/84a53580c5d2138c7361c7c3eea5b31827e63b35 |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/076f2479fc5a15c4a970ca3b5e57d42ba09a31fa |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/3df71e11a4773d775c3633c44319f7acdb89011c |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/55195563ec29f80f984237b743de0e2b6ba4d093 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/56ad3f475482bca55b0ae544031333018eb145b3 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/84a53580c5d2138c7361c7c3eea5b31827e63b35 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/dc9dbd65c803af1607484fed5da50d41dc8dd864 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/f684c16971ed5e77dfa25a9ad25b5297e1f58eab |  |

</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>

| 影响的包 | 修复版本 | 修复补丁 | 问题引入补丁 | 来源  |
| ------- | -------- | ------- | -------- | --------- |
|  |  | https://git.kernel.org/stable/c/076f2479fc5a15c4a970ca3b5e57d42ba09a31fa |  | nvd |
|  |  | https://git.kernel.org/stable/c/3df71e11a4773d775c3633c44319f7acdb89011c |  | nvd |
|  |  | https://git.kernel.org/stable/c/55195563ec29f80f984237b743de0e2b6ba4d093 |  | nvd |
|  |  | https://git.kernel.org/stable/c/56ad3f475482bca55b0ae544031333018eb145b3 |  | nvd |
|  |  | https://git.kernel.org/stable/c/84a53580c5d2138c7361c7c3eea5b31827e63b35 |  | nvd |
|  |  | https://git.kernel.org/stable/c/dc9dbd65c803af1607484fed5da50d41dc8dd864 |  | nvd |
|  |  | https://git.kernel.org/stable/c/f684c16971ed5e77dfa25a9ad25b5297e1f58eab |  | nvd |
| linux |  | https://git.kernel.org/linus/84a53580c5d2138c7361c7c3eea5b31827e63b35 | https://git.kernel.org/linus/4f4853dc1c9c1994f6f756eabdcc25374ff271d9 | ubuntu |

</details>

二、漏洞分析结构反馈
 影响性分析说明：
    In the Linux kernel, the following vulnerability has been resolved:ipv6: sr: fix out-of-bounds read when setting HMAC data.The SRv6 layer allows defining HMAC data that can later be used to sign IPv6Segment Routing Headers. This configuration is realised via netlink throughfour attributes: SEG6_ATTR_HMACKEYID, SEG6_ATTR_SECRET, SEG6_ATTR_SECRETLEN andSEG6_ATTR_ALGID. Because the SECRETLEN attribute is decoupled from the actuallength of the SECRET attribute, it is possible to provide invalid combinations(e.g., secret =   , secretlen = 64). This case is not checked in the code andwith an appropriately crafted netlink message, an out-of-bounds read of upto 64 bytes (max secret length) can occur past the skb end pointer and intoskb_shared_info:Breakpoint 1, seg6_genl_sethmac (skb=<optimized out>, info=<optimized out>) at net/ipv6/seg6.c:208208memcpy(hinfo->secret, secret, slen);(gdb) bt #0  seg6_genl_sethmac (skb=<optimized out>, info=<optimized out>) at net/ipv6/seg6.c:208 #1  0xffffffff81e012e9 in genl_family_rcv_msg_doit (skb=skb@entry=0xffff88800b1f9f00, nlh=nlh@entry=0xffff88800b1b7600,    extack=extack@entry=0xffffc90000ba7af0, ops=ops@entry=0xffffc90000ba7a80, hdrlen=4, net=0xffffffff84237580 <init_net>, family=<optimized out>,    family=<optimized out>) at net/netlink/genetlink.c:731 #2  0xffffffff81e01435 in genl_family_rcv_msg (extack=0xffffc90000ba7af0, nlh=0xffff88800b1b7600, skb=0xffff88800b1f9f00,    family=0xffffffff82fef6c0 <seg6_genl_family>) at net/netlink/genetlink.c:775 #3  genl_rcv_msg (skb=0xffff88800b1f9f00, nlh=0xffff88800b1b7600, extack=0xffffc90000ba7af0) at net/netlink/genetlink.c:792 #4  0xffffffff81dfffc3 in netlink_rcv_skb (skb=skb@entry=0xffff88800b1f9f00, cb=cb@entry=0xffffffff81e01350 <genl_rcv_msg>)    at net/netlink/af_netlink.c:2501 #5  0xffffffff81e00919 in genl_rcv (skb=0xffff88800b1f9f00) at net/netlink/genetlink.c:803 #6  0xffffffff81dff6ae in netlink_unicast_kernel (ssk=0xffff888010eec800, skb=0xffff88800b1f9f00, sk=0xffff888004aed000)    at net/netlink/af_netlink.c:1319 #7  netlink_unicast (ssk=ssk@entry=0xffff888010eec800, skb=skb@entry=0xffff88800b1f9f00, portid=portid@entry=0, nonblock=<optimized out>)    at net/netlink/af_netlink.c:1345 #8  0xffffffff81dff9a4 in netlink_sendmsg (sock=<optimized out>, msg=0xffffc90000ba7e48, len=<optimized out>) at net/netlink/af_netlink.c:1921...(gdb) p/x ((struct sk_buff *)0xffff88800b1f9f00)->head + ((struct sk_buff *)0xffff88800b1f9f00)->end$1 = 0xffff88800b1b76c0(gdb) p/x secret$2 = 0xffff88800b1b76c0(gdb) p slen$3 = 64  @ The OOB data can then be read back from userspace by dumping HMAC state. Thiscommit fixes this by ensuring SECRETLEN cannot exceed the actual length ofSECRET. 
 openEuler评分：
  5.5
 Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
 受影响版本排查(受影响/不受影响)：
  1.openEuler-22.03-LTS-SP1(5.10.0):受影响
2.openEuler-20.03-LTS-SP4(4.19.90):不受影响
3.openEuler-22.03-LTS-SP3(5.10.0):不受影响
4.openEuler-22.03-LTS-SP4(5.10.0):不受影响
5.master(6.1.0):不受影响
6.openEuler-24.03-LTS(6.6.0):不受影响
7.openEuler-24.03-LTS-Next(6.6.0):不受影响

修复是否涉及abi变化(是/否)：
  1.openEuler-20.03-LTS-SP4(4.19.90):否
2.openEuler-22.03-LTS-SP1(5.10.0):否
3.openEuler-22.03-LTS-SP3(5.10.0):否
4.master(6.1.0):否
5.openEuler-24.03-LTS(6.6.0):否
6.openEuler-24.03-LTS-Next(6.6.0):否
7.openEuler-22.03-LTS-SP4(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-2024-2080

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