alsa-2021:4595
Vulnerability from osv_almalinux
The binutils packages provide a collection of binary utilities for the manipulation of object code in various object file formats. It includes the ar, as, gprof, ld, nm, objcopy, objdump, ranlib, readelf, size, strings, strip, and addr2line utilities.
Security Fix(es):
- Developer environment: Unicode's bidirectional (BiDi) override characters can cause trojan source attacks (CVE-2021-42574)
The following changes were introduced in binutils in order to facilitate detection of BiDi Unicode characters:
Tools which display names or strings (readelf, strings, nm, objdump) have a new command line option --unicode / -U which controls how Unicode characters are handled.
Using "--unicode=default" will treat them as normal for the tool. This is the default behaviour when --unicode option is not used. Using "--unicode=locale" will display them according to the current locale. Using "--unicode=hex" will display them as hex byte values. Using "--unicode=escape" will display them as Unicode escape sequences. Using "--unicode=highlight" will display them as Unicode escape sequences highlighted in red, if supported by the output device.
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
{
"affected": [
{
"package": {
"ecosystem": "AlmaLinux:8",
"name": "binutils-devel"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.30-108.el8_5.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"details": "The binutils packages provide a collection of binary utilities for the manipulation of object code in various object file formats. It includes the ar, as, gprof, ld, nm, objcopy, objdump, ranlib, readelf, size, strings, strip, and addr2line utilities.\n\nSecurity Fix(es):\n\n* Developer environment: Unicode\u0027s bidirectional (BiDi) override characters can cause trojan source attacks (CVE-2021-42574)\n\nThe following changes were introduced in binutils in order to facilitate detection of BiDi Unicode characters:\n\nTools which display names or strings (readelf, strings, nm, objdump) have a new command line option --unicode / -U which controls how Unicode characters are handled.\n\nUsing \"--unicode=default\" will treat them as normal for the tool. This is the default behaviour when --unicode option is not used.\nUsing \"--unicode=locale\" will display them according to the current locale.\nUsing \"--unicode=hex\" will display them as hex byte values.\nUsing \"--unicode=escape\" will display them as Unicode escape sequences.\nUsing \"--unicode=highlight\" will display them as Unicode escape sequences highlighted in red, if supported by the output device.\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
"id": "ALSA-2021:4595",
"modified": "2021-11-16T08:43:55Z",
"published": "2021-11-10T08:41:52Z",
"references": [
{
"type": "REPORT",
"url": "https://vulners.com/cve/CVE-2021-42574"
}
],
"related": [
"CVE-2021-42574"
],
"summary": "Moderate: binutils security update"
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.