net: prevent mss overflow in skb_segment()
Noroxi assessment
Priority: Monitor (action score 22/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 0.23% (FIRST EPSS).
- Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
- Fixed version: Linux Linux 0d3ffbbf8631d6db0552f46250015648991c856f, 23d05d563b7e7b0314e65c8e882bc27eac2da8e7, 6c53e8547687d9c767c139cd4b50af566f58c29a.
- Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).
Low priority for now. Upgrade to Linux Linux 0d3ffbbf8631d6db0552f46250015648991c856f, 23d05d563b7e7b0314e65c8e882bc27eac2da8e7, 6c53e8547687d9c767c139cd4b50af566f58c29a or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
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 following computation 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 to a bad final result. Make sure to limit segmentation so that the new mss value is smaller than GSO_BY_FRAGS. [1] general protection fault, probably for non-canonical address 0xdffffc000000000e: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000070-0x0000000000000077] CPU: 1 PID: 5079 Comm: syz-executor993 Not tainted 6.7.0-rc4-syzkaller-00141-g1ae4cd3cbdd0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 RIP: 0010:skb_segment+0x181d/0x3f30 net/core/skbuff.c:4551 Code: 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 00 RSP: 0018:ffffc900043473d0 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000010046 RCX: ffffffff886b1597 RDX: 000000000000000e RSI: ffffffff886b2520 RDI: 0000000000000070 RBP: ffffc90004347578 R08: 0000000000000005 R09: 000000000000ffff R10: 000000000000ffff R11: 0000000000000002 R12: ffff888063202ac0 R13: 0000000000010000 R14: 000000000000ffff R15: 0000000000000046 FS: 0000555556e7e380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020010000 CR3: 0000000027ee2000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> udp6_ufo_fragment+0xa0e/0xd00 net/ipv6/udp_offload.c:109 ipv6_gso_segment+0x534/0x17e0 net/ipv6/ip6_offload.c:120 skb_mac_gso_segment+0x290/0x610 net/core/gso.c:53 __skb_gso_segment+0x339/0x710 net/core/gso.c:124 skb_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:4338 dev_queue_xmit include/linux/netdevice.h:3134 [inline] packet_xmit+0x257/0x380 net/packet/af_packet.c:276 packet_snd net/packet/af_packet.c:3087 [inline] packet_sendmsg+0x24c6/0x5220 net/packet/af_packet.c:3119 sock_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:2198 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f8692032aa9 Code: 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 48 RSP: 002b:00007fff8d685418 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f8692032aa9 RDX: 0000000000010048 RSI: 00000000200000c0 RDI: 0000000000000003 RBP: 00000000000f4240 R08: 0000000020000540 R09: 0000000000000014 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff8d685480 R13: 0000000000000001 R14: 00007fff8d685480 R15: 0000000000000003 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:skb_segment+0x181d/0x3f30 net/core/skbuff.c:4551 Code: 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 00 RSP: 0018:ffffc900043473d0 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000010046 RCX: ffffffff886b1597 RDX: 000000000000000e RSI: ffffffff886b2520 RDI: 0000000000000070 RBP: ffffc90004347578 R0 ---truncated---
- Published
- Feb 20, 2024
- Updated
- Jun 17, 2026
- EPSS
- 0.2% · 13th percentile
- CWE
- CWE-119
Report tools
Action score
22
Monitor
Low priority for now.
- CVSS
- 22 / 40 · 5.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.2%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| linux | linux kernel | cpe:2.3:o:linux:linux_kernel |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- linux linux kernelbefore 5.4.269
- linux linux kernel5.5.0 and later · before 5.10.210
- linux linux kernel5.11.0 and later · before 5.15.149
- linux linux kernel5.16.0 and later · before 6.1.79
- linux linux kernel6.2.0 and later · before 6.6.11
- linux linux kernel6.7
Versions reported by the vendor
Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.
Linux Linux
- 4.8affected
- 3953c46c3ac7eef31a9935427371c6f54a22f1ba and later · before 0d3ffbbf8631d6db0552f46250015648991c856faffected · git
- 3953c46c3ac7eef31a9935427371c6f54a22f1ba and later · before cd1022eaf87be8e6151435bd4df4c242c347e083affected · git
- 3953c46c3ac7eef31a9935427371c6f54a22f1ba and later · before 8f8f185643747fbb448de6aab0efa51c679909a3affected · git
- 3953c46c3ac7eef31a9935427371c6f54a22f1ba and later · before 6c53e8547687d9c767c139cd4b50af566f58c29aaffected · git
- 3953c46c3ac7eef31a9935427371c6f54a22f1ba and later · before 989b0ff35fe5fc9652ee5bafbe8483db6f27b137affected · git
- 3953c46c3ac7eef31a9935427371c6f54a22f1ba and later · before 95b3904a261a9f810205da560e802cc326f50d77affected · git
- 3953c46c3ac7eef31a9935427371c6f54a22f1ba and later · before 23d05d563b7e7b0314e65c8e882bc27eac2da8e7affected · git
- before 4.8not affected · semver
- 4.19.321 and later · up to and including 4.19.*not affected · semver
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:10 | linux-5.10 | before 5.10.216-1~deb10u1 | 5.10.216-1~deb10u1 |
| Debian:11 | linux | before 5.10.216-1 | 5.10.216-1 |
| Debian:12 | linux | before 6.1.82-1 | 6.1.82-1 |
| Debian:13 | linux | before 6.6.11-1 | 6.6.11-1 |
| openSUSE:Leap 15.6 | dtb-aarch64 | before 6.4.0-150600.23.17.1 | 6.4.0-150600.23.17.1 |
| openSUSE:Leap 15.6 | kernel-debug | before 6.4.0-150600.23.17.1 | 6.4.0-150600.23.17.1 |
| openSUSE:Leap 15.6 | kernel-kvmsmall | before 6.4.0-150600.23.17.1 | 6.4.0-150600.23.17.1 |
| openSUSE:Leap 15.6 | kernel-obs-qa | before 6.4.0-150600.23.17.1 | 6.4.0-150600.23.17.1 |
| SUSE:Linux Enterprise Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6_Update_3 | before 1-150600.13.3.1 | 1-150600.13.3.1 |
| SUSE:Linux Enterprise Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6_Update_3 | before 1-150600.13.3.1 | 1-150600.13.3.1 |
| SUSE:Linux Enterprise Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6-RT_Update_1 | before 1-150600.1.5.1 | 1-150600.1.5.1 |
| SUSE:Linux Enterprise Live Patching 15 SP6 | kernel-livepatch-SLE15-SP6-RT_Update_1 | before 1-150600.1.5.1 | 1-150600.1.5.1 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP6 | kernel-64kb | before 6.4.0-150600.23.17.1 | 6.4.0-150600.23.17.1 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP6 | kernel-64kb | before 6.4.0-150600.23.17.1 | 6.4.0-150600.23.17.1 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP6 | kernel-default | before 6.4.0-150600.23.17.1 | 6.4.0-150600.23.17.1 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP6 | kernel-default | before 6.4.0-150600.23.17.1 | 6.4.0-150600.23.17.1 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP6 | kernel-default-base | before 6.4.0-150600.23.17.1.150600.12.6.2 | 6.4.0-150600.23.17.1.150600.12.6.2 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP6 | kernel-default-base | before 6.4.0-150600.23.17.1.150600.12.6.2 | 6.4.0-150600.23.17.1.150600.12.6.2 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP6 | kernel-source | before 6.4.0-150600.23.17.1 | 6.4.0-150600.23.17.1 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP6 | kernel-source | before 6.4.0-150600.23.17.1 | 6.4.0-150600.23.17.1 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP6 | kernel-zfcpdump | before 6.4.0-150600.23.17.1 | 6.4.0-150600.23.17.1 |
| SUSE:Linux Enterprise Module for Basesystem 15 SP6 | kernel-zfcpdump | before 6.4.0-150600.23.17.1 | 6.4.0-150600.23.17.1 |
| SUSE:Linux Enterprise Module for Development Tools 15 SP6 | kernel-docs | before 6.4.0-150600.23.17.3 | 6.4.0-150600.23.17.3 |
| SUSE:Linux Enterprise Module for Development Tools 15 SP6 | kernel-docs | before 6.4.0-150600.23.17.3 | 6.4.0-150600.23.17.3 |
+24
Same product
linux: all recordsOther highest-scoring records for the same primary product.
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- CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV85Now
- CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV83Now
- CVE-2019-13272In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to creKEV77This week
- CVE-2013-6282The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addKEV77This week
- CVE-2013-2094The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9 uses an incorrect integer data type, which allows loKEV77This week
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Linux Linux | 0d3ffbbf8631d6db0552f46250015648991c856f | Vendor (CNA) |
| Linux Linux | 23d05d563b7e7b0314e65c8e882bc27eac2da8e7 | Vendor (CNA) |
| Linux Linux | 6c53e8547687d9c767c139cd4b50af566f58c29a | Vendor (CNA) |
| Linux Linux | 8f8f185643747fbb448de6aab0efa51c679909a3 | Vendor (CNA) |
| Linux Linux | 95b3904a261a9f810205da560e802cc326f50d77 | Vendor (CNA) |
| Linux Linux | 989b0ff35fe5fc9652ee5bafbe8483db6f27b137 | Vendor (CNA) |
| Linux Linux | cd1022eaf87be8e6151435bd4df4c242c347e083 | Vendor (CNA) |
| debian:linux | 6.1.82-1 · Debian:12 | Package registry (OSV) |
| debian:linux-5.10 | 5.10.216-1~deb10u1 · Debian:10 | Package registry (OSV) |
| opensuse:dtb-aarch64 | 6.4.0-150600.23.17.1 · openSUSE:Leap 15.6 | Package registry (OSV) |
| opensuse:kernel-64kb | 6.4.0-150600.23.17.1 · openSUSE:Leap 15.6 | Package registry (OSV) |
| opensuse:kernel-debug | 6.4.0-150600.23.17.1 · openSUSE:Leap 15.6 | Package registry (OSV) |
| suse:kernel-64kb | 6.4.0-150600.23.17.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6 | Package registry (OSV) |
| suse:kernel-default | 6.4.0-150600.23.17.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6 | Package registry (OSV) |
| suse:kernel-default-base | 6.4.0-150600.23.17.1.150600.12.6.2 · SUSE:Linux Enterprise Module for Basesystem 15 SP6 | Package registry (OSV) |
| suse:kernel-docs | 6.4.0-150600.23.17.3 · SUSE:Linux Enterprise Module for Development Tools 15 SP6 | Package registry (OSV) |
| suse:kernel-livepatch-SLE15-SP6_Update_3 | 1-150600.13.3.1 · SUSE:Linux Enterprise Live Patching 15 SP6 | Package registry (OSV) |
| suse:kernel-obs-build | 6.4.0-150600.23.17.1 · SUSE:Linux Enterprise Module for Development Tools 15 SP6 | Package registry (OSV) |
| suse:kernel-source | 6.4.0-150600.23.17.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6 | Package registry (OSV) |
| suse:kernel-syms | 6.4.0-150600.23.17.1 · SUSE:Linux Enterprise Module for Development Tools 15 SP6 | Package registry (OSV) |
| suse:kernel-zfcpdump | 6.4.0-150600.23.17.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
- CVE-2023-524401 days apartksmbd: fix slub overflow in ksmbd_decode_ntlmssp_auth_blob()38Monitor
- CVE-2021-4734891 days apartdrm/amd/display: Avoid HDCP over-read and corruption36Monitor
- CVE-2022-3640487 days apartLinux Kernel Bluetooth l2cap_core.c l2cap_conn_del use after free35Monitor
- CVE-2023-524340 days apartsmb: client: fix potential OOBs in smb2_parse_contexts()32Monitor
- CVE-2023-524411 days apartksmbd: fix out of bounds in init_smb2_rsp_hdr()31Monitor
- CVE-2023-524442 days apartf2fs: fix to avoid dirent corruption31Monitor
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
National notice (Türkiye Cybersecurity Directorate / USOM)
Official security notices citing this record; remediation advice is on the agency's page.
- TR-24-0494 · May 16, 2024(Linux Kernel Güncellemesi)
Technical details
Attack conditions
- Someone with local access to the system can trigger it.
- A low-privileged account is enough.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory BufferCVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- Buffer Overflow via Environment VariablesCAPEC-10likelihood: High · High
- Overflow BuffersCAPEC-100likelihood: High · Very High
- Buffer ManipulationCAPEC-123likelihood: High · Very High
- Client-side Injection-induced Buffer OverflowCAPEC-14likelihood: Medium · High
- Filter Failure through Buffer OverflowCAPEC-24likelihood: High · High
- MIME ConversionCAPEC-42likelihood: High · High
- Overflow Binary Resource FileCAPEC-44likelihood: High · Very High
- Buffer Overflow via Symbolic LinksCAPEC-45likelihood: High · High
ATT&CK techniques
—
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (7 more)Show less
- git.kernel.org/stable/c/23d05d563b7e7b0314e65c8e882bc27eac2da8e7
- git.kernel.org/stable/c/6c53e8547687d9c767c139cd4b50af566f58c29a
- git.kernel.org/stable/c/8f8f185643747fbb448de6aab0efa51c679909a3
- git.kernel.org/stable/c/95b3904a261a9f810205da560e802cc326f50d77
- git.kernel.org/stable/c/989b0ff35fe5fc9652ee5bafbe8483db6f27b137
- git.kernel.org/stable/c/cd1022eaf87be8e6151435bd4df4c242c347e083
- lists.debian.org/debian-lts-announce/2024/06/msg00017.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.