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CVE-2009-2847
The do_sigaltstack function in kernel/signal.c in Linux kernel 2.4 through 2.4.37 and 2.6 before 2.6.31-rc5, when running on 64-bit…
Medium4.9EPSS 0.94%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
The do_sigaltstack function in kernel/signal.c in Linux kernel 2.4 through 2.4.37 and 2.6 before 2.6.31-rc5, when running on 64-bit systems, does not clear certain padding bytes from a structure, which allows local users to obtain sensitive information from the kernel stack via the sigaltstack function.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium4.9 | AV:L/AC:L/Au:N/C:C/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.94% · top 39% of all CVEs (5 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.9.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (21)
- [oss-security] 20090804 CVE request - kernel: information leak in sigaltstack (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=515392 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 37471 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- USN-852-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- RHSA-2009:1243 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 36759 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://www.vmware.com/security/advisories/VMSA-2009-0016.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20090826 Re: CVE request - kernel: information leak in sigaltstack (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- oval:org.mitre.oval:def:10637 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 20091120 VMSA-2009-0016 VMware vCenter and ESX update release and vMA patch release address multiple security issue in third party components (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 36562 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- FEDORA-2009-9044 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=0083fc2c50e6c5127c2802ad323adf8143ab7856 (opens in a new tab)x_refsource_CONFIRMx_transferred
- oval:org.mitre.oval:def:8405 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 9352 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- 36501 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- [oss-security] 20090805 Re: CVE request - kernel: information leak in sigaltstack (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- RHSA-2009:1438 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- ADV-2009-3316 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 37105 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 36136 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2009-2847)Record last updated .