7
CVE-2017-1000112
- EPSS 83.64%
- Veröffentlicht 05.10.2017 01:29:04
- Zuletzt bearbeitet 20.04.2025 01:37:25
- Quelle cve@mitre.org
- Teams Watchlist Login
- Unerledigt Login
Linux kernel: Exploitable memory corruption due to UFO to non-UFO path switch. When building a UFO packet with MSG_MORE __ip_append_data() calls ip_ufo_append_data() to append. However in between two send() calls, the append path can be switched from UFO to non-UFO one, which leads to a memory corruption. In case UFO packet lengths exceeds MTU, copy = maxfraglen - skb->len becomes negative on the non-UFO path and the branch to allocate new skb is taken. This triggers fragmentation and computation of fraggap = skb_prev->len - maxfraglen. Fraggap can exceed MTU, causing copy = datalen - transhdrlen - fraggap to become negative. Subsequently skb_copy_and_csum_bits() writes out-of-bounds. A similar issue is present in IPv6 code. The bug was introduced in e89e9cf539a2 ("[IPv4/IPv6]: UFO Scatter-gather approach") on Oct 18 2005.Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 2.6.15 < 3.10.108
Linux ≫ Linux Kernel Version >= 3.11 < 3.16.47
Linux ≫ Linux Kernel Version >= 3.17 < 3.18.65
Linux ≫ Linux Kernel Version >= 3.19 < 4.4.82
Linux ≫ Linux Kernel Version >= 4.5 < 4.9.43
Linux ≫ Linux Kernel Version >= 4.10 < 4.12.7
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 83.64% | 0.993 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| nvd@nist.gov | 7 | 1 | 5.9 |
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
|
| nvd@nist.gov | 6.9 | 3.4 | 10 |
AV:L/AC:M/Au:N/C:C/I:C/A:C
|
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.