CVE-2011-2496: linux linux_kernel Numeric Errors
Vulnerability summary
CVE-2011-2496 is a medium (CVSS 4.9) Numeric Errors vulnerability in linux linux_kernel. EPSS estimates a 0.49% chance of exploitation in the next 30 days, higher than 41.9% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 4.9, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 5Timeline
- 13-06-2012PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
Integer overflow in the vma_to_resize function in mm/mremap.c in the Linux kernel before 2.6.39 allows local users to cause a denial of service (BUG_ON and system crash) via a crafted mremap system call that expands a memory mapping.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
0.49%
Chance of exploitation in the next 30 days
Percentile
42%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.49% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundLinux
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, no authentication (CVSS vector). Other conditions: not stated in public data.
Ubuntu9 products
- linux< 3.11.0-12.19
- linux-flo< 3.4.0-1.3
- linux-goldfish< 3.4.0-1.9
- linux-grouper< 3.1.10-8.28
- linux-lts-utopic< 3.16.0-25.33~14.04.2
Linux1 product
- linux_kernel≤ 2.6.38.8 | 2.6.38 | 2.6.38:rc1 | 2.6.38:rc2 | 2.6.38:rc3 | 2.6.38:rc4 | 2.6.38:rc5 | 2.6.38:rc6 | 2.6.38:rc7 | 2.6.38:rc8 | 2.6.38.1 | 2.6.38.2 | 2.6.38.3 | 2.6.38.4 | 2.6.38.5 | 2.6.38.6 | 2.6.38.7
2 vendors · 10 products
References
19 links- bugzilla.redhat.com/show_bug.cgi?id=716538X Refsource CONFIRM
- github.com/torvalds/linux/commit/982134ba62618c2d69fbbbd166d0a11ee3b7e3d8X Refsource CONFIRMExploitPatch
- git.kernel.orgX Refsource CONFIRM
- ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39X Refsource CONFIRM