CVE-2005-0990
unshar (unshar.c) in sharutils 4.2.1 allows local users to overwrite arbitrary files via a symlink attack on the unsh.X temporary file.
02 Description
unshar (unshar.c) in sharutils 4.2.1 allows local users to overwrite arbitrary files via a symlink attack on the unsh.X temporary file.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.36% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 29.6% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- Low. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2005-04-06 04:00Z21 YR AGO
- Last updated
- 2024-08-07 21:35Z2 YR AGO
- Reserved
- 2005-04-06
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- No CWE assigned
- Data version
- 5.1
- Document digest
- 41a659028e1601ed5cd9c12f13a8ac5c486b4a9e605ffa64021552a16e2ce475
05 Affected products
06 References
- oval.cisecurity.orgoval:org.mitre.oval:def:9613https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9613
- bugzilla.ubuntu.comhttps://bugzilla.ubuntu.com/show_bug.cgi?id=8459
- exchange.xforce.ibmcloud.comsharutils-temp-file-symlink(19957)https://exchange.xforce.ibmcloud.com/vulnerabilities/19957
- www.securityfocus.com12981http://www.securityfocus.com/bid/12981
- usn.ubuntu.comUSN-104-1https://usn.ubuntu.com/104-1/
- bugs.debian.orghttp://bugs.debian.org/cgi-bin/bugreport.cgi?bug=302412
- www.redhat.comRHSA-2005:377http://www.redhat.com/support/errata/RHSA-2005-377.html
07 Fixed in
Debian 12
- sharutils Fixed in 1:4.2.1-13
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- sharutils Fixed in 1:4.2.1-13
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- sharutils Fixed in 1:4.2.1-13
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.