Vulnerability in Grsecurity Kernel Patch
CVE-2007-0257
Unspecified vulnerability in the expand_stack function in grsecurity PaX allows local users to gain privileges via unspecified vectors. NOTE: the grsecurity developer has disputed this issue, stating that "the function they claim the vulnerability to be in is a trivial function, which can, and has been, easily checked for any supposed vulnerabilities." The developer also cites a past disclosure that was not proven. As of 20070120, the original researcher has released demonstration code
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.010 (61.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 61.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- Grsecurity Kernel Patch — versions 1.9.4, 2.0.1, 2.0.2
Public proof-of-concept exploits
References
- securitytracker.com/id (vdb-entry)
- www.digitalarmaments.com/pre2007-00018659.html (URL Repurposed, Vendor Advisory)
- www.securityfocus.com/archive/1/456626/100/0/threaded (mailing-list)
- www.securityfocus.com/archive/1/456722/100/0/threaded (mailing-list)
- www.securityfocus.com/archive/1/462302/100/100/threaded (mailing-list)
- www.digitalarmaments.com/news_news.shtml (URL Repurposed, Vendor Advisory)
- grsecurity.net/news.php
- secunia.com/advisories/23713 (third-party-advisory)
- www.securityfocus.com/bid/22014 (vdb-entry)
- forums.grsecurity.net/viewtopic.php (Vendor Advisory)
Frequently asked questions
- What is CVE-2007-0257?
- CVE-2007-0257 is a high-severity vulnerability in Grsecurity Kernel Patch. CVSS score: 7.8/10. Published 2007-01-16.
- How severe is CVE-2007-0257?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2007-0257 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.