CVE-2021-47485
IB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
In the Linux kernel, the following vulnerability has been resolved: IB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields Overflowing either addrlimit or bytes_togo can allow userspace to trigger a buffer overflow of kernel memory. Check for overflows in all the places doing math on user controlled buffers.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
2.6.35
References 8
git.kernel.org
- stable/c/bda41654b6e0c125a624ca35d6d20beb8015b5d0
- stable/c/3f57c3f67fd93b4da86aeffea1ca32c484d054ad
- stable/c/60833707b968d5ae02a75edb7886dcd4a957cf0d
- stable/c/73d2892148aa4397a885b4f4afcfc5b27a325c42
- stable/c/0f8cdfff06829a0b0348b6debc29ff6a61967724
- stable/c/c3e17e58f571f34c51aeb17274ed02c2ed5cf780
- stable/c/0d4395477741608d123dad51def9fe50b7ebe952
- stable/c/d39bf40e55e666b5905fdbd46a0dced030ce87be