Buffer overflow in GNU Ncurses
CVE-2023-29491
ncurses before 6.4 20230408, when used by a setuid application, allows local users to trigger security-relevant memory corruption via malformed data in a terminfo database file that is found in $HOME/.terminfo or reached via the TERMINFO or TERM environment variable.
Vulnerability class: Buffer Overflow
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: 0.009 (59.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 59.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: +0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.openwall.com/lists/oss-security/2023/04/13/4 (Patch, Mailing List)
- ncurses.scripts.mit.edu/
- www.openwall.com/lists/oss-security/2023/04/12/5 (Mailing List)
- www.openwall.com/lists/oss-security/2023/04/19/10 (mailing-list, Patch, Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2023/04/19/11 (mailing-list, Exploit, Mailing List, Third Party Advisory)
- security.netapp.com/advisory/ntap-20230517-0009/
- support.apple.com/kb/HT213843
- support.apple.com/kb/HT213844
- support.apple.com/kb/HT213845
- lists.debian.org/debian-lts-announce/2023/12/msg00004.html (mailing-list)
Frequently asked questions
- What is CVE-2023-29491?
- CVE-2023-29491 is a high-severity vulnerability in GNU Ncurses, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2023-04-14.
- How severe is CVE-2023-29491?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2023-29491 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.