Veracode Vulnerability DatabaseVERACODE:23750Denial Of Service (DoS)
EPSS
Percentile
26.5%
The kernel is vulnerable to denial of service (DoS).The ADDR_COMPAT_LAYOUT and MMAP_PAGE_ZERO flags were not cleared when a setuid or setgid program was executed. A local, unprivileged user could use this flaw to bypass the mmap_min_addr protection mechanism and perform a NULL pointer dereference attack, or bypass the Address Space Layout Randomization (ASLR) security feature.
References
blog.cr0.org/2009/06/bypassing-linux-null-pointer.html
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f9fabcb58a6d26d6efde842d1703ac7cfa9427b6
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=f9fabcb58a6d26d6efde842d1703ac7cfa9427b6
patchwork.kernel.org/patch/32598/
secunia.com/advisories/35801
secunia.com/advisories/36045
secunia.com/advisories/36051
secunia.com/advisories/36054
secunia.com/advisories/36116
secunia.com/advisories/36131
secunia.com/advisories/36759
secunia.com/advisories/37471
wiki.rpath.com/Advisories:rPSA-2009-0111
www.debian.org/security/2009/dsa-1844
www.debian.org/security/2009/dsa-1845
www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.31-rc3
www.mandriva.com/security/advisories?name=MDVSA-2011:051
www.osvdb.org/55807
www.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5.4/html/Technical_Notes/kernel.html#RHSA-2009-1193
www.redhat.com/security/updates/classification/#important
www.redhat.com/support/errata/RHSA-2009-1193.html
www.redhat.com/support/errata/RHSA-2009-1438.html
www.securityfocus.com/archive/1/505254/100/0/threaded
www.securityfocus.com/archive/1/507985/100/0/threaded
www.securityfocus.com/archive/1/512019/100/0/threaded
www.securityfocus.com/bid/35647
www.ubuntu.com/usn/usn-807-1
www.vmware.com/security/advisories/VMSA-2009-0016.html
www.vupen.com/english/advisories/2009/1866
www.vupen.com/english/advisories/2009/3316
access.redhat.com/errata/RHSA-2009:1193
bugs.launchpad.net/bugs/cve/2009-1895
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11768
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7826
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9453
rhn.redhat.com/errata/RHSA-2009-1540.html
rhn.redhat.com/errata/RHSA-2009-1550.html
www.redhat.com/archives/fedora-package-announce/2009-August/msg00166.html
www.redhat.com/archives/fedora-package-announce/2009-August/msg00223.html
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