CVE-2023-6857
published 2023-12-19CVE-2023-6857: When resolving a symlink, a race may occur where the buffer passed to `readlink` may actually be smaller than necessary. *This bug only affects Firefox on…
medium5.3CVSS 3.1
AVNACHPRNUIRSUCNIHAN
When resolving a symlink, a race may occur where the buffer passed to `readlink` may actually be smaller than necessary.
*This bug only affects Firefox on Unix-based operating systems (Android, Linux, MacOS). Windows is unaffected.* This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.
Affected
21 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | firefox | < firefox 121.0-1 (sid) | firefox 121.0-1 (sid) |
| debian | firefox-esr | < firefox 121.0-1 (sid) | firefox 121.0-1 (sid) |
| debian | thunderbird | < firefox 121.0-1 (sid) | firefox 121.0-1 (sid) |
| mozilla | firefox | < 121.0 | 121.0 |
| mozilla | firefox | — | — |
| mozilla | firefox | >= 0 < 121.0+build1-0ubuntu0.20.04.1 | 121.0+build1-0ubuntu0.20.04.1 |
| mozilla | firefox | >= 0 < 121.0.1+build1-0ubuntu0.20.04.1 | 121.0.1+build1-0ubuntu0.20.04.1 |
| mozilla | firefox | >= unspecified < 121 | 121 |
| mozilla | firefox_esr | < 115.6 | 115.6 |
| mozilla | firefox_esr | >= unspecified < 115.6 | 115.6 |
| mozilla | thunderbird | < 115.6 | 115.6 |
| mozilla | thunderbird | >= 0 < 1:115.6.0-1~deb11u1 | 1:115.6.0-1~deb11u1 |
| mozilla | thunderbird | >= 0 < 1:115.6.0-1~deb12u1 | 1:115.6.0-1~deb12u1 |
| mozilla | thunderbird | >= 0 < 1:115.6.0-1 | 1:115.6.0-1 |
| mozilla | thunderbird | >= 0 < 1:115.6.0-1 | 1:115.6.0-1 |
| mozilla | thunderbird | >= 0 < 1:115.6.0+build2-0ubuntu0.20.04.1 | 1:115.6.0+build2-0ubuntu0.20.04.1 |
| mozilla | thunderbird | >= 0 < 1:115.6.0+build2-0ubuntu0.22.04.1 | 1:115.6.0+build2-0ubuntu0.22.04.1 |
| mozilla | thunderbird | >= unspecified < 115.6 | 115.6 |
CVSS provenance
nvdv3.15.3MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
osv5.3MEDIUM
Ubuntu
Firefox regressions
vendor_ubuntu·2024-01-11·CVSS 4.3
[MEDIUM] Firefox regressions
Title: Firefox regressions
Summary: USN-6562-1 caused some minor regressions in Firefox.
USN-6562-1 fixed vulnerabilities in Firefox. The update introduced
several minor regressions. This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
Multiple security issues were discovered in Firefox. If a user were
tricked into opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, obtain sensitive
information across domains, or execute arbitrary code.(CVE-2023-6865,
CVE-2023-6857, CVE-2023-6858, CVE-2023-6859, CVE-2023-6866, CVE-2023-6867,
CVE-2023-6861, CVE-2023-6869, CVE-2023-6871, CVE-2023-6872, CVE-2023-6863,
CVE-2023-6864, CVE-2023-6873)
DoHyun Lee discovered that Firefox did not properly manage
Ubuntu
Firefox vulnerabilities
vendor_ubuntu·2024-01-02·CVSS 4.3
CVE-2023-6857 [MEDIUM] Firefox vulnerabilities
Title: Firefox vulnerabilities
Summary: Several security issues were fixed in Firefox.
Multiple security issues were discovered in Firefox. If a user were
tricked into opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, obtain sensitive
information across domains, or execute arbitrary code.(CVE-2023-6865,
CVE-2023-6857, CVE-2023-6858, CVE-2023-6859, CVE-2023-6866, CVE-2023-6867,
CVE-2023-6861, CVE-2023-6869, CVE-2023-6871, CVE-2023-6872, CVE-2023-6863,
CVE-2023-6864, CVE-2023-6873)
DoHyun Lee discovered that Firefox did not properly manage memory when used
on systems with the Mesa VM driver. An attacker could potentially exploit
this issue to execute arbitrary code. (CVE-2023-6856)
George Pantela and Hubert Kario discovered tha
Ubuntu
Thunderbird vulnerabilities
vendor_ubuntu·2024-01-02·CVSS 4.3
CVE-2023-6859 [MEDIUM] Thunderbird vulnerabilities
Title: Thunderbird vulnerabilities
Summary: Several security issues were fixed in Thunderbird.
Multiple security issues were discovered in Thunderbird. If a user were
tricked into opening a specially crafted website in a browsing context, an
attacker could potentially exploit these to cause a denial of service,
obtain sensitive information, bypass security restrictions, cross-site
tracing, or execute arbitrary code.(CVE-2023-6857, CVE-2023-6858,
CVE-2023-6859, CVE-2023-6861, CVE-2023-6862, CVE-2023-6863, CVE-2023-6864)
Marcus Brinkmann discovered that Thunderbird did not properly parse a PGP/MIME
payload that contains digitally signed text. An attacker could potentially
exploit this issue to spoof an email message. (CVE-2023-50762)
Marcus Brinkmann discovered that Thunderbird did not p
Red Hat
Mozilla: Symlinks may resolve to smaller than expected buffers
vendor_redhat·2023-12-19·CVSS 5.3
CVE-2023-6857 [MEDIUM] CWE-363 Mozilla: Symlinks may resolve to smaller than expected buffers
Mozilla: Symlinks may resolve to smaller than expected buffers
When resolving a symlink, a race may occur where the buffer passed to `readlink` may actually be smaller than necessary.
*This bug only affects Firefox on Unix-based operating systems (Android, Linux, MacOS). Windows is unaffected.* This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.
The Mozilla Foundation Security Advisory describes this flaw as:
When resolving a symlink, a race may occur where the buffer passed to `readlink` may actually be smaller than necessary.
*This bug only affects Firefox on Unix-based operating systems (Android, Linux, MacOS). Windows is unaffected.*
Statement: Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Securit
Debian
CVE-2023-6857: firefox - When resolving a symlink, a race may occur where the buffer passed to `readlink`...
vendor_debian·2023·CVSS 5.3
CVE-2023-6857 [MEDIUM] CVE-2023-6857: firefox - When resolving a symlink, a race may occur where the buffer passed to `readlink`...
When resolving a symlink, a race may occur where the buffer passed to `readlink` may actually be smaller than necessary. *This bug only affects Firefox on Unix-based operating systems (Android, Linux, MacOS). Windows is unaffected.* This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.
Scope: local
sid: resolved (fixed in 121.0-1)
Mozilla
Mozilla Foundation Security Advisory 2023-56: CVE-2023-6857
vendor_mozilla·CVSS 5.3
CVE-2023-6857 [MEDIUM] Mozilla Foundation Security Advisory 2023-56: CVE-2023-6857
Mozilla Foundation Security Advisory 2023-56
CVE: CVE-2023-6857
Product: Firefox
Impact: high
Fixed in: Firefox 121
Mozilla
Mozilla Foundation Security Advisory 2023-55: CVE-2023-6857
vendor_mozilla·CVSS 5.3
CVE-2023-6857 [MEDIUM] Mozilla Foundation Security Advisory 2023-55: CVE-2023-6857
Mozilla Foundation Security Advisory 2023-55
CVE: CVE-2023-6857
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 115.6
Mozilla
Mozilla Foundation Security Advisory 2023-54: CVE-2023-6857
vendor_mozilla·CVSS 5.3
CVE-2023-6857 [MEDIUM] Mozilla Foundation Security Advisory 2023-54: CVE-2023-6857
Mozilla Foundation Security Advisory 2023-54
CVE: CVE-2023-6857
Product: Firefox ESR
Impact: high
Fixed in: Firefox ESR 115.6
OSV
firefox regressions
osv·2024-01-11·CVSS 4.3
CVE-2023-6865 [MEDIUM] firefox regressions
firefox regressions
USN-6562-1 fixed vulnerabilities in Firefox. The update introduced
several minor regressions. This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
Multiple security issues were discovered in Firefox. If a user were
tricked into opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, obtain sensitive
information across domains, or execute arbitrary code.(CVE-2023-6865,
CVE-2023-6857, CVE-2023-6858, CVE-2023-6859, CVE-2023-6866, CVE-2023-6867,
CVE-2023-6861, CVE-2023-6869, CVE-2023-6871, CVE-2023-6872, CVE-2023-6863,
CVE-2023-6864, CVE-2023-6873)
DoHyun Lee discovered that Firefox did not properly manage memory when used
on systems with the Mesa VM driver. An attacker coul
OSV
thunderbird vulnerabilities
osv·2024-01-02·CVSS 4.3
CVE-2023-6857 [MEDIUM] thunderbird vulnerabilities
thunderbird vulnerabilities
Multiple security issues were discovered in Thunderbird. If a user were
tricked into opening a specially crafted website in a browsing context, an
attacker could potentially exploit these to cause a denial of service,
obtain sensitive information, bypass security restrictions, cross-site
tracing, or execute arbitrary code.(CVE-2023-6857, CVE-2023-6858,
CVE-2023-6859, CVE-2023-6861, CVE-2023-6862, CVE-2023-6863, CVE-2023-6864)
Marcus Brinkmann discovered that Thunderbird did not properly parse a PGP/MIME
payload that contains digitally signed text. An attacker could potentially
exploit this issue to spoof an email message. (CVE-2023-50762)
Marcus Brinkmann discovered that Thunderbird did not properly compare the
signature creation date with the message date an
OSV
firefox vulnerabilities
osv·2024-01-02·CVSS 4.3
CVE-2023-6865 [MEDIUM] firefox vulnerabilities
firefox vulnerabilities
Multiple security issues were discovered in Firefox. If a user were
tricked into opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, obtain sensitive
information across domains, or execute arbitrary code.(CVE-2023-6865,
CVE-2023-6857, CVE-2023-6858, CVE-2023-6859, CVE-2023-6866, CVE-2023-6867,
CVE-2023-6861, CVE-2023-6869, CVE-2023-6871, CVE-2023-6872, CVE-2023-6863,
CVE-2023-6864, CVE-2023-6873)
DoHyun Lee discovered that Firefox did not properly manage memory when used
on systems with the Mesa VM driver. An attacker could potentially exploit
this issue to execute arbitrary code. (CVE-2023-6856)
George Pantela and Hubert Kario discovered that Firefox using multiple NSS
NIST curves which were susceptible
GHSA
GHSA-8fq6-p869-285x: When resolving a symlink, a race may occur where the buffer passed to `readlink` may actually be smaller than necessary
ghsa_unreviewed·2023-12-19
CVE-2023-6857 [MEDIUM] CWE-362 GHSA-8fq6-p869-285x: When resolving a symlink, a race may occur where the buffer passed to `readlink` may actually be smaller than necessary
When resolving a symlink, a race may occur where the buffer passed to `readlink` may actually be smaller than necessary.
*This bug only affects Firefox on Unix-based operating systems (Android, Linux, MacOS). Windows is unaffected.* This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.
OSV
CVE-2023-6857: When resolving a symlink, a race may occur where the buffer passed to `readlink` may actually be smaller than necessary
osv·2023-12-19·CVSS 5.3
CVE-2023-6857 [MEDIUM] CVE-2023-6857: When resolving a symlink, a race may occur where the buffer passed to `readlink` may actually be smaller than necessary
When resolving a symlink, a race may occur where the buffer passed to `readlink` may actually be smaller than necessary. *This bug only affects Firefox on Unix-based operating systems (Android, Linux, MacOS). Windows is unaffected.* This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://bugzilla.mozilla.org/show_bug.cgi?id=1796023https://lists.debian.org/debian-lts-announce/2023/12/msg00020.htmlhttps://lists.debian.org/debian-lts-announce/2023/12/msg00021.htmlhttps://security.gentoo.org/glsa/202401-10https://www.debian.org/security/2023/dsa-5581https://www.debian.org/security/2023/dsa-5582https://www.mozilla.org/security/advisories/mfsa2023-54/https://www.mozilla.org/security/advisories/mfsa2023-55/https://www.mozilla.org/security/advisories/mfsa2023-56/https://bugzilla.mozilla.org/show_bug.cgi?id=1796023https://lists.debian.org/debian-lts-announce/2023/12/msg00020.htmlhttps://lists.debian.org/debian-lts-announce/2023/12/msg00021.htmlhttps://security.gentoo.org/glsa/202401-10https://www.debian.org/security/2023/dsa-5581https://www.debian.org/security/2023/dsa-5582https://www.mozilla.org/security/advisories/mfsa2023-54/https://www.mozilla.org/security/advisories/mfsa2023-55/https://www.mozilla.org/security/advisories/mfsa2023-56/
2023-12-19
Published